The Failed Swordsman Who Became the Strongest After Spamming the 100 Million Years Button


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There was a mysterious old man who approached the failed swordsman with the “100 million years button”. A magic button which can achieve the same effect as training for 100 million years if you push it.

The failed swordsman who pushed the button had his doubts, but immediately felt tremendous power rising in his body. So he pushed the button many times.

However it was a cursed button. The moment it was pushed, he was confined to the 100 million years prison of time. The first 100 years were devoted solely to training. After 1000 years he had forgotten why he swung his sword. He stopped thinking completely after 10,000 years had passed. After 100 million years he became crippled and finally managed to return to the real world. At the same time losing all his memories from the past 100 million years, the only thing that remained were his sword techniques. “I can become stronger just by pressing the button!” or so he thought and pushed the button many times after that. Foolishly trapping himself in that 100 million years of hell each time.

As he continued this loop, he began to think “If I destroy this world, will I get out of here?” A few billion years later, he finally escaped from the loop.

This is the story of a failed swordsman trying to make a name for himself in the world.

Associated Names
One entry per line
Ichiokunen Button o Rendashita Ore wa, Kidzuitara Saikyou ni Natteita ~Rakudai Kenshi no Gakuin Musou~
I Kept Pressing the 100-Million Button and Came Out on Top
I Realised that I Became The Strongest After spamming the 100 Million Years Button – The Dropout Swordsman that Became Unparralled
Related Series
To Be a Power in the Shadows! (2)
Ex Strongest Swordsman Longs For Magic In Different World (1)
End of the Magic Era (1)
Game Market 1983 (1)
I’m the Evil Lord of an Intergalactic Empire! (1)
Perfect New Magician Enrolls in a Magic School in the World 1000 Years Later, the Legendary Strongest Magician (1)
Recommendation Lists
  1. Rom+harem+tragedy(2&1/2 pack)
  2. Favorites
  3. Laid back rom
  4. Non-Serious Guide to JP Novels
  5. Harems

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09/28/21 Light Novels Translations c301
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52 Reviews sorted by

New Yakumo614 rated it
September 11, 2021
Status: v1c17
This story is garbage. I tried to give this a chance, but the author just sucks. I'm putting the main issues I had up to the point I read in spoilers because I need to get this off my chest.

... more>>

The main character trained for hundreds of millions of years then gets dropped back at the exact point he started from. The novel shows that he keeps the body training he did in the other world because he is able to make a trip that normally takes him three hours in ten minutes. He then nearly loses to a 15 year old girl with no special powers despite all this. Then he gets challenged to a duel by a b*tchy girl who wants the loser to become the winner's s*ave. He barely beats her then she goes straight from hating his guts to inviting him to live in her room that same night. Then we get a tournament arc where the character's opponent tries to murder a spectator before the match, and nobody says or does anything about it. So, is this a world where the strong can do whatever they want? Then they have their match and the opponent tries to kill the MC. The MC activates a superpowered split personality and tries to kill the opponent in revenge. Then, the next chapter is the opponent getting a month suspension from school for two counts of attempted murder, and there's people trying to get the MC expelled for trying to kill a guy who already tried to kill him. So, apparently there are supposed to be rules in this world but they're just applied arbitrarily because f*ck it, what the hell is worldbuilding anyway? I just couldn't take the s*upidity any longer and dropped it.

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SAimNE rated it
January 18, 2020
Status: c17 part1
Inconsistent af.

He spent 100 years to mimic and improve 4 different styles. Now if you wanted the best genius of all time they might be able to do that in a day

So his 100 years is a day in super ultra mega genius time. So let's add it up. A year is 36500, 3 years is ~110000, that makes his 1.1 billion to be ~30000 years of time as a super ultra mega chicken haxor God genius.... And he gets his ass kicked by a 15 year old.

f*ck off. Can't... more>> believe the most illogical thing in a story where a dude trains for a billion years is how sh*t the authors consistency is. <<less
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LetThemFall rated it
March 8, 2019
Status: c17
I like the first three translated novels so I decided to read the raws using google translate. It was a bit disappointing. He seems to be the stereotypical passive Japanese protagonist that allows people to push him around.

... more>>

*This is what I understood from the raws so there could be inaccuracies* After spending a billion years stuck within an isolated dimension he finally "escapes", by escape I mean he was able to slowly cause a tear in the dimension and get out when the countdown reached the end of the 100 million loop, I think that was when the dimension becomes most vulnerable. He wakes up, first thinks it was a dream but proceed to realize that it wasn't when he beats that one guy who talked sh*t about his mom. You would think he would have some sort of psychological issues being isolated for such a long time. Either act dead, emotionless or be extremely crazy/expressive since the dimension would prevent him from have strong emotions but nope. He is just your normal, strong, filial piety following, good neighborhood youngster. I kept on reading since its not that bad but stopped when I realized what kind of OP character we got. He was having trouble beating an opponent from the opposing school (he ended up going to one of the top five school, current ranked 5th and been slowly on the decline so now its his responsibility to bring it back to the top #MakesHisSchoolGreatAgain) and was about to get killed when he loses consciousness and his other self takes over (a wild psychological disorder has appeared!!). His physical body changes, hair becomes longer and white and gets some black tattoo going down his eyes. He proceeds to destroy the opponent and was about to kill him until one of the main harem members stopped him and begs him not to do it. She wants his old gentle self to comeback. At first he doesn't listen but then finally stops when he was going to do the deed and proceeds to faint. Keep in mind that they have only known each other for about 1 week but since she is harem member #2, you gotta show some face. Scene skip, the headmasters of the top 5 schools are discussing how to discipline the two contestants because both broke both the rules. His opponent was also going for blood before getting the sh*t beaten out of him. So they decided to suspend the opponent for a month. When it gets to the MC, they want to force him to dropout but the resolution fails 3-2, so he gets to stay in school. The top two schools don't want to lose their position hence trying get rid of him. I dislike the fact that even after spending so much time training he doesn't have fate in his own hands. Swordsmanship is just one aspect, it seems people can have soul weapons or something like that. His mom knows the old time hermit so there is some background movement going on.

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FaerNC rated it
November 27, 2019
Status: --
I was so disappointed in this one, you know the saying:"The higher the expectation, the larger the disappointment"? The idea was so great, I was wishing for a deep delve into human psyche and how being trapped for millions of years would affect his state of mind and how he views the world. However, you know what's better, why doesn't he just forget everything! What's the use of the title if it literally has no other effect after chapter 2! It's just a useless powerup mechanic at the start of... more>> the story! What use is it if it has no effect on the story, should've just made him wake up with those powers and it would make no difference. Makes me mad just thinking about it. <<less
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Siikalahna rated it
June 23, 2020
Status: c101
As many other reviewers have said, this is utter garbage. The story makes zero sense whatsoever. MC is OP - except he's not because apparently everyone and their dog is even more OP - and that is without having even used any cheat button that allows them to train for 100 million years.

MC should've used that time properly and killed himself the moment he was out, because this whole story is shit. At least it would've ended at that point and we wouldn't have to suffer reading this garbage.


I wanted to like it, since the premise sounded good, so I kept on with it. But no, this train wreck is not salvageable in any way, shape or form.

Author should just cut their losses and write a short chapter saying "and then MC realized he's a useless waste of space who can't do anything right and killed himself. The world kept on going because the MC was as insignificant part of the actual world as an ant is. The end."

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boltpl rated it
November 6, 2019
Status: c8
I find this novel quite badly written and not well thought.

1. Author is not sure if it is medieval setting or modern one, you got no cars but there is electricity and modern electronic.

2. The whole “mystery” about MC mother and Time Hermit is to forced, illogical, has many loopholes, and has no sense at all...

Not worth your time...

About translation, I noticed that comments under chapter are heavy moderated, and negative one tend disappear or not appear at all.

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ExtremeRampage rated it
February 2, 2020
Status: c36 part2
Interesting premise for making an MC who is OP and it making some kind of sense but the Author "half-asses" by seemingly nerfing the MC and always making him just as powerful as he needs to be for the plot. Other reviewers already explained the Tournament where he struggles a lot as an example. It is later kind of implied that he actually really is super OP but he has to "unlock" his power and getting it from his "Soul-Dress" which are kind of like Stands from Jojo or Zanpakoutous... more>> from Bleach but much lamer.

I really tried to like this but it is way too much "Shounen" for me. Characters are cookie-cutter, predictable and so is the plot. MC is also the typical "herbivore/beta" who gets a harem for no real reason other than being moderately powerful and a "nice guy". All girls and women seemingly fall for him immediately and obsess over him while he keeps them all at some distance (typical shounen).

Other than that the setting is also very strange. You've got a seemingly typical medieval-type fantasy setting with swords and magic but at the same time, there are also helicopters and jets flying around. No idea what's going on there. <<less
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mediocre reader
mediocre reader rated it
November 3, 2020
Status: c20
Humanity live on earth since 6 million years ago.

This bit*h of an MC has outlived your ancestor's ancestors. He f*cking outlived humanity. For 100 million years he could have invented sword techniques that far surpassed other techniques and at f*cking least beat the sh*t out of a kid the SAME AGE AS HIM. The kid lived for 15 years and surpassed the MC who lived for 100m years.

summary: MC is a push over and humanity's greatest failure. (Of course in the novel)
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kay.lenson rated it
May 6, 2020
Status: c10
Everything is good in this novel, would have given 5 stars.
but everything goes down drain if MC is spineless dumb moron, I mean even after 100 Million Years (which made him mini-saitama), he acts like typical spineless moron
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danish341 rated it
December 21, 2019
Status: c10
I was searching for Japanese LN ('OP MC' tag.) when I came across this series.

Well..... In the summary, it looked tempting but when I started reading it..... you can probably imagine what happens when one judges a book by its cover..... It was not that good as I imagined it to be...... To be honest, the lone attitude of MC in the starting chapters was pissing me off somehow..... When he has such OP power, then why can't you use even a percent of it even though you have mostly... more>> forgotten about it..... One other thing that just doesn't make any sense was that when he trained for 100 years in mind due to some reason during a match then how can you improve so little on techniques that you can't even win against that opponent.....

But this is not the sole problem here..... the side characters don't get proper attention and they are ignored on important occasions..... so don't expect anything from them......

About 'Action'..... The scenes that were written are somewhat good.....

This series will greatly depend on one's taste....... It was my personal opinion so don't take any offense......

In my opinion, it was neither good nor bad..... <<less
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Joniv rated it
February 25, 2020
Status: c9
A training of billion years and you have problems to defeat swordsmans of your age, seriously? Wtf, he sever the small world of the time heremite with a slash!
The personality of MC is just more of the same. I think a billions years of torment, even if you only vaguely remember it like a dream, would at least change his personality... disappointing.

I've read a lot of weak stuff, but this work made me want to drop in the first 3 chapters lul. Don't waste your time, it's not worth... more>> it <<less
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Promethean rated it
March 11, 2020
Status: c52
Its tr*sh. If you have read any harem novel before, you can skip this one. Except for the first few chapters, everything is basically like all the other ones you read before... but worse. I don't know how the author did it, but he did.

I was actually interested in the first few chapters. But nope. It went far below expectations. This was how I felt about reading the first few chapters of Arifureta, but then after meeting girl no. 2, you could tell the series was going to turn into... more>> another generic run of the mill isekai harem series.

Expect instant love harem members. So, no character development among any of the side characters. MC is the usual useless MC. Even after billions of years of training nothing but technique, he still loses to a girl who only trains for 1 year (but by s*upid bullsh*t he wins by strength? That's not how you write a good story or characters. Take an example for hero academia, one of the few shounen that does character development really good).

Every single character is just the same as all the other characters you've read in your tr*sh harem stories. They aren't any different, and there's nothing unique about them. I don't mind harems if the characters and unique, have character development, or in general, interesting. But like all tr*sh harems, they aren't. Just 1D characters that even a child can make more fully developed.

This story even steals the Zangpato thing from bleach, and the main character is basically a shittier, weaker, more stereotypical sh*t tier japanese person than Ichigo, with non of the coolness or anything that a girl would even instantly fall in love for.

So basically, the moral of the story is the title is a f**king lie. He did not become the strongest. It should be: "After spamming the 100 million years button, I gained the power to make a harem". Because, that's what this story really is about.

But of course, Japan being Japan, any tr*sh harem story will get super popular, while well written characters with real character development and plot depth will fade into obscurity. I guess as a westerner, I prefer stories with more substance than what is basically a self-insert teenage boy fantasy copy cat novel.

I know, I know, I'm expect too much from authors who just want to join in on the cash grab craze, but just because you want to use the usual troupes, doesn't mean you can't do it well. But considering those well written ones aren't that popular, I guess good writing is poison in the japanese webnovel world. <<less
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SolidG rated it
February 4, 2021
Status: c15
This is rated super low for a reason.

I know I know, the basis of the story makes you interested doesnt it?

It's executed horribly. He spends several 100 million of years training. Let me say that one more time, SEVERAL 100 MILLION YEARS TRAINING. And still manages to struggle against a 15 year old. He litterly slices through space itself. Yet when he cuts other people, they are fine. I mean. What in the world. After 100 million years you would expect just the teeny tiniests amount of psycological growth but... more>> no, there's none. He spends more time alive then the durration of civilization on the planet (presumably, idk how long this fantasy world has been around) yet has the mentality of a 15 year old kid. A beta 15 year old with no backbone at that.

I usually try to read at least 50 chapters to give something a chance. I just couldnt with this. It may get better, I doubt it, but it might. I just can't deal with the MC it makes no sense. I've seen some people who are giving it higher marks so apparently it's decent to some people. I just cannot force myself to read this anymore. <<less
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benuhhdit rated it
April 11, 2020
Status: c7
As with many other comments posted, I agree with the disappointment of a relatively good idea/concept with poor execution. Granted I do read for enjoyment and can glaze over most plot holes, but when things get as inconsistent as this novel does, I drop it.

The MC spent billions of years, BILLIONS to come out and not even be anything close to remotely OP, not only that, but all that time by himself did literally nothing for his maturity or sense of self. Read this Novel if you wanna casually see... more>> some harem tropes as long as you can handle a passive beta MC <<less
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muhammodalamin rated it
February 13, 2020
Status: --
He barely wins with kids in swordmanship. What happened to his grand swordmanship training of a billion years? He can split the world apart. And yet he is so weak that he wins against mere kids with much effforts. Everything is about swordmanship? Wtf the world is full of magic but nobody seems to mention the magic thing. The title of becoming the strongest is wrong.
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A_Passing_Wanderer rated it
December 2, 2020
Status: c164
Unlike most people rating this novel, I've endured and read up to c164 but I'm finally clocking out of this one.

It's cliched and a huge waste of potential. I kind of like the world setting where magic and science co-exists so we get aeroplanes and magical thingymajigys, and the mystery surrounding who the MC really is seems somewhat intriguing if predictable, but the rest...

For one thing, the MC is a moron. A typical Japanese beta male goody two shoes who doesn't kill because of "morals". However, he's supposed to be... more>> training to become a deadly swordsman. His job is literally to cut people down with sharp objects. And practically nobody dies. Not even the most vile villains. Yes, they all survive.

And there's the obligatory harem element where every girl falls for MC for some unfathomable reason. Apparently, he's not even all that good looking or tall or super charismatic, but girls just fall for him left, right, and centre. And when they do, they seem to lose just about all semblance of personalities.

The latest arc began smelling like the onset of "Power of Friendship!!!" shonen cliche so that's when I decided to bale out. <<less
8 Likes · Like Permalink | Report
bel7142 rated it
June 6, 2020
Status: v2
i got to say"IAM DISAPPOINTED", the MC

Literally trained for millions of years yet struggles infront of a 15 year (sigh), even our planet is only four point something billion years old, and the MC who's supposed to be old as a frikkin planet is still a failure hey MC you should stop doing its not for you
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MrAakmr rated it
January 24, 2020
Status: c17 part2
Started with an interesting premise, but the shoddy world building rears it's head (is it set in modern times or not? Why is everyone so into swords?).

... more>>

Then we get to the tournament when we face 2 genius students the same age, and his character flips flops a bit here. The first opponent traps him in a sub-dimension for 100 years, and he doesn't immediately escape. Was this not a source of trauma for him? Then the second opponent beats him only for some edgy alternate personality to appear, and that is when I decided it was enough. How was a same age person meant to overcome this guys 10 X 100 million years of training? He can cut space/dimensions!


Overall, not something I will continue reading. I'm sure there are plenty of novels out there with similarly interesting premises, and without so much of the flaws. <<less
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ocureader rated it
December 15, 2019
Status: c21
Extremely disappointed, this series had a lot of potential but it turned to standard cliche story (in a bad way, I love cliche). It becomes more visible as you read more how bad the pacing and the writing are.

Only recommend this if you haven't read a lot of Japanese novels because I've seen a lot of other novels using the cliche troops a lot better than this one.

I would call myself an isekai tr*sh and a lover of these kinds of novels, but this novel is pretty sub par compared... more>> to others.

Mini spoiler:

MC trained for 100 million years, but I would call him no more than average compared to the strong ones.


Trained for 100 million years but can't beat a talented opponent around the same age. Have to resort to standard anime cliche were MC borrow power from unknown entity taking over his body (aka bleach ichigo hollow power). <<less
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silver207 rated it
July 11, 2020
Status: c107
I was shocked when I saw the low rating this series got (2.9* at the time this review was written), and I honestly created a NU account just to write this review and give this series some justice.

As other people mentioned, this story and a lot of its troops are indeed clichè. It's not an unique story in any way, nor is it some parody or a deep, psychological novel, and yes, you have probably read / seen similar stories.

However, that in no ways means that this is a bad... more>> novel.

While it is not the greatest novel I have read, reading it was a very enjoyable experience, and in fact, it is probably one of the few novels I feel I was never bored while reading. The plot is fast-paced and packed full of events, and it has a lot of sweet, heartwarming moments as well as some comedy, so it always kept me entertained.

Also, as this novel is really light and "easygoing", it is easy to read and understand. I'd even say that for the purpose of making the reader's experience "lighter" and more relaxed, its genericness actually benefits it.

In conclusion, this series is extremely fun and entertaing to read, and it's highly recommend for those looking for a light read. <<less
6 Likes · Like Permalink | Report
iagainsti120 rated it
July 14, 2020
Status: c94
I am shocked how may people don't like this, it in no was deserves anything lower than a 4 in my opinion. If you are looking for not overly drawn out fights an OP MC with a little romance (still surprised to see the harem tag). This will be right up your alley, ignore the negative reviews.
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