Going Back and Forth Between Earth and The Other World with Space Time Magic

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Though he received the skills necessary to teleport across worlds, the king who performed the summoning ritual attempted to trick him into wearing a slavery collar, this annoyed him so he kidnapped the princess and returned to Earth.

While traveling between worlds with the skills he received, together with the kidnapped Princess and his little sister, they lived happily ever after?

Going Back and Forth Between Earth and The Other World with Space Time Magic average rating 3.3/5 - 429 user ratings
Associated Names
One entry per line
Jikuu Mahou de Isekai to Chikyuu wo Ittarikitari
時空魔法で異世界と地球を行ったり来たり
Related Series
N/A
Recommendations
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Latest Release

Date Group Release
09/04/17 Ice Cream Cake TL c318c318
08/28/17 Ice Cream Cake TL c317c317
08/21/17 Ice Cream Cake TL c316c316
08/15/17 Ice Cream Cake TL c314-315c314-315
08/04/17 Ice Cream Cake TL c312-313c312-313
07/29/17 Ice Cream Cake TL c311c311
07/24/17 Ice Cream Cake TL c310c310
07/22/17 Ice Cream Cake TL c309c309
07/17/17 Ice Cream Cake TL c308c308
07/12/17 Ice Cream Cake TL c307c307
07/07/17 Ice Cream Cake TL c306c306
06/28/17 Ice Cream Cake TL c304-c305c304-c305
06/22/17 Ice Cream Cake TL c303c303
06/16/17 Ice Cream Cake TL c301-302c301-302
06/08/17 Ice Cream Cake TL c300c300
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38 Reviews sorted by


serokun
New serokun rated it
November 3, 2017
Status: c300
The story is refreshing for transported to another world but halfway through I got annoyed of the MC, even though he is a pervert (close probably) he is so dense about the feelings about girls about him just because they are half of his age. The author should just make him a little bit younger.
0 Likes · Like Permalink | Report
UnknownSaint171
UnknownSaint171 rated it
May 11, 2016
Status: --
I'm not going to lie. Having several 15 - 18 year old girls fonding over a 30 year old middle age man is disturbing... Its true that the Main Character doesn't even act his age.
... more>>
Spoiler

the only girl is Nancy whose in her mid 20s. The author could had made her main heroine and really used her character... but instead made this Novel really weird.

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Don't let the Synopsis deceive you! I thought this would be a heart warming fantasy. But there's no plot or character development. The Sister was impressive at first but then suddenly turns to 'love' for him. Honestly there are better stories to translate out there so why this? I don't mean to sound like a jerk. Sorry but that's the truth.

I do admit there are entertaining parts when there's Slice Of Life with Magic in the Modern day society.. but the Author could had made used of it better.

This Novel will end either 2 ways.
1. He will go live in the Fantasy World and takes all the girls and make them his wives. Due to having no laws and having a lot of freedom. (The sister incest and young girls who fall for him)
2. He will send the Princess back to her world and lives his life without Magic and goes back to his Normal life. He has already caused many disturbances with Magic in both Worlds. I Can't see this ending any other way. <<less
62 Likes · Like Permalink | Report
Sheep
Sheep rated it
June 13, 2016
Status: c176
If you like to be blue balled and abused this is the novel for you! But here is why you should read this novel/sarcasm!

1. There is no plot in this novel (fair enough its part slice of life)
2. The main guy is 30 year old doutei (read: virgin) who has godlike power but still accept abuse from his sister (read: imouto) without reason.
3. The main girl wants the D but due to the existence of imouto and the fact that the MC is a giant balless male... more>> species he never go on!
4. Fight is basically, I use Thunderbolt! Pikachu fainted due to using thunderbolt. gg.
5. Character progression a lot of them!... is not present at all.. <<less
44 Likes · Like Permalink | Report
Water
Water rated it
February 13, 2016
Status: --
Honestly at this point I feel like there should be another tag called "herbivore protag" or "protag has no balls". Which takes protagonist mindset into account rather than actual abilities/powers. My personal preference is that I hate this kind of protagonist. 70 chps later and there's literally no character development, protag is still mentally still a shrimp and can't even call out on others for their sh*t.

Tags says "protagonist strong from start" but well, a pu**y with cheat powers is still a pu**y in the end. I can't recommend... more>> this story towards anyone else but well... other herbivores who wants to read some guilty pleasure selfwank fantasies for herbivores. <<less
28 Likes · Like Permalink | Report
That1guy
That1guy rated it
April 1, 2016
Status: --
No action no epic or cool moments well how should I say it... It’s boring, there is no romance MC is dense, MC has no motivation or interest in the other world other then profiting and going there as a vacation.

Read till 121 and I’m tired of his I do this cuz of Elena and his little sister is annoying... btw r-15 is stupid no use of profanity or any thing for that rating in all I am dropping this cuz I thought he would change or at least do... more>> something cool and epic that gives flair to the story but no such thing happens only small skirmishes and light battles <<less
17 Likes · Like Permalink | Report
jgfenix
jgfenix rated it
April 19, 2016
Status: --
A total waste of time. The idea could be interesting but nothing happens. The character development is inexistent and the little sister is annoying (there are annoying little sisters characters that I like but I can´t stand this). Dropped.

Not exactly the same but if someone wants a slice of life with fantasy and action where there is actual plot development read "The man picked up by the gods".
16 Likes · Like Permalink | Report
Crimson Nanashi
Crimson Nanashi rated it
March 7, 2016
Status: --
rating of 4/5 for me.

a very laid back series about a guy on a trip to enjoy another world that has magic and swords. Very good series. If you like Death March you will like this series.

I find it hilarious that people think that just because the main character isn’t in the other world killing as many people as he can because he has power or killing the ones that slight him = him being a pu**y or having no balls. It’s baffling and makes me wonder if there are... more>> a lot of sociopaths making some of the reviews on series that are like this series (including this series). Looking at you reviewer called “water”.

also I have no issues with the sister. She’s not as old as her brother so obviously she wont be as level headed as him. She is very believable as a character that is round 18-19 years old

also @water u said “protag is still mentally still a shrimp and can’t even call out on others for their sh*t.”. Did you even read the first two chapters? Literally calls the king out on both trying to make him into a slave and for ordering that knight to kill him from behind and shows video proof of it to everyone in the room. <<less
13 Likes · Like Permalink | Report
SeventhTale
SeventhTale rated it
May 20, 2016
Status: c156
This is more like a slice of life type of fantasy-harem story. This is not like other series, which has a wider plot. The description says, "the 3 happily lived", so it's better to think that the whole story is more like an epilogue about how they are spending their daily lives in the other world and in earth.

Though the character's personality doesn't match their age like the MC and his imouto. This novel is very relaxing and fun to read. This is not a type of novel that has... more>> a serious atmosphere and lot's of conflict. So it's better not to read it if you want a wider plot. <<less
10 Likes · Like Permalink | Report
Domar
Domar rated it
April 19, 2016
Status: --
I don't know what it is about this series, I can't get enough of it, every single chapter leaves me wanting more, even when I look at it objectively and see the flaws, 130+ chapters in my excitement to read each chapter hasn't vanished. Though, I could really do with no Aya, she dropped in so randomly and seems to be there entirely to annoy and block the fun of everyone.
10 Likes · Like Permalink | Report
skycat
skycat rated it
October 17, 2016
Status: c279
The start is nice, though cliche but I enjoyed it. However after like 100+ chapters, I have felt that the story has suddenly lost its sense of direction. It doesn't have any goal or specific plot. It just flows as is like a normal slice of life story without any direction. Although it's still a nice a relaxing read if you don't hold really high expectation in the story.
8 Likes · Like Permalink | Report
SageRozenburg
SageRozenburg rated it
June 1, 2016
Status: c171
A relaxing novel, if your tired of fantasy mixed with a lot of scheming people, this is a good novel to sit and read, though plot is pretty straight forward. It's enough to kill time.
7 Likes · Like Permalink | Report
aldrinkhan
aldrinkhan rated it
May 17, 2016
Status: c153
A good time killer. Nothing special. Nothing hateful. More of a slice of life with magic and a meddlesome naive MC. Probably the fact that MC is in loli land (not in a lovable Death March kind) is a turn off.
7 Likes · Like Permalink | Report
GluttonGirl
GluttonGirl rated it
February 13, 2016
Status: --
Casual teleportations, potions, job cheat, pretty much a story about someone level-headed getting a fantasy cheat. But I love it all the same.
7 Likes · Like Permalink | Report
Maracas
Maracas rated it
March 15, 2016
Status: --
Honestly idk why this is rated r-15... because of the kidnapped thing? Well if you take it at heart it should be r18 because MC is 30 and kidnapped girl is 15 xD

r15 tag is wasted, there are not even bad words.

I couldnt continue reading after random sister introduction (i did read some random chapters to verify if there are bad words, blood or implicit s*x scene nothing xD)

It seems people compare this with death march, that one I hate (MC more than anything) this one is bearable (MC... more>> is interesting)

And death march is a world of lolis (below two digits year old) at least here there are people of random age.

MC and party (idk if harem but I seriously doubt it) have a rather easy life considering he kidnap the kingdom’s princess and there may be some movement of the demon race (like come on even if the demon race is just a group of sheeps a wolf have been summon to kill them)

The lack of plot with that introduction is really bad :/

I cant say it is a casual read because most of the time the reader will be pissed and that is not casual xD

All in all if you dont care about plot or wasted tag read this, if you dont care MC and want decent plot read death march xD <<less
6 Likes · Like Permalink | Report
LittleFox21
LittleFox21 rated it
October 4, 2016
Status: c268
Slice of life OP party which alternates between worlds. Adding real world touch is a refreshment for all isekai fantasy theme.

There are balanced amount of actions, comedies, crisis. Not brilliant, but worth your time if you like casual reads.
5 Likes · Like Permalink | Report
BQDJ
BQDJ rated it
December 4, 2015
Status: --
I’m writing this at c35. The lack of action is real now.

Why the useless sister ? I mean... why... It pretty much messes the whole LN. The guy and the princess are supposed to have some romantic moments sometimes but the sister is a huge downer. She wastes skills too because he ends up giving her what he should have. Ridiculous...

I’ll stop reading it. But for casual reader, it’s okay. it can pass the time. Pretty much Death March (that I don’t like so much, it’s okay though)... more>> but ten times worse. <<less
5 Likes · Like Permalink | Report
Cryarc
Cryarc rated it
September 2, 2016
Status: --
The beginning chapters of the series feels charming, it was pleasant to see an actual adult as MC in an isekai genre but then suddenly the MC acts like wimsy teenager. It goes from refreshing theme into cliches/tropes. Sometimes even the Japanese readers are questioning the author's intention for the series as the series becomes dumber and dumber as it's going on. At first the joke is quite fun, though it's not the laugh out loud type jokes but a smile inducing jokes, but at the latest of the series... more>> it becomes cringe worthy; I still can't fathom the author's intention in creating terrorism scenes with laughable villains that just suddenly popped up in public without clear purpose, and the ninja jokes... <<less
4 Likes · Like Permalink | Report
g1aciem
g1aciem rated it
August 27, 2016
Status: c254
This novel is mainly slice of life genre. No drama. No Horror. No plot.
... more>>
Spoiler

At this chapter, the only thing I could call plot is the mystery of Yurie's summoner.
The Devil-kin seem random to me.

[collapse]

I recommend this to anyone who want a relaxed read. There are some things irritated me though.

1. MC's personality: He's 30 years old working man not an unemployed shut-in. Why does his mind process like some teenager boy? What is the definition of life experience? At this point even if the author just replace all the text "30" with "15" I wouldn't notice something goes wrong except he's a salary man.

MC started with childish mind is not necessary a bad thing considering we could see some differences after character's development. Well, that is what I thought at first. As of now, he is still the same...

2. Little Sister: She is unreasonable, hot-headed and selfish.

She know her brother is almost pass marriage age but still obstruct him instead of support his relationship with women. I understand in case of Elena or Hilda that they are too young but what about Lela?

There are some hints that she might has a feeling for her brother. It's okay if the brother is a 18 years old boy and she doesn't want him to have a girlfriend, but in actually, the brother is in the state that he should consider making a family already. Anything she does now is just selfish action.

3. MC got kicked by little sister: There are many series that MC got punched when they involved in R-15 stuff and I enjoyed them. But I think the violence in this one is handled badly. Maybe it's because my bias feeling on the little sister.

To sum it up, just remove Aya and this novel would be a very great read. <<less
4 Likes · Like Permalink | Report
Xenety
Xenety rated it
May 29, 2016
Status: --
A nice twist in being summoned to another world, I like the idea that the MC isn't trap in the world his summoned to and can return to his own world. It's nice break from other similar summoning stories where the MC can't return to their own world.
4 Likes · Like Permalink | Report
Linodo
Linodo rated it
July 19, 2016
Status: c224
This novel is the epitome of a casual read in the web novel category. The story is slow and lacking much tension as you will know the MC and his harem won't go through any peril at all even though adversaries are right in front of them. If you just want a story that requires no brain power just to destress or something, go knock yourself out. Provided you enjoy the genre of Harem with no s*x and minimal risque scenes (I mean minimal so much so that I think... more>> the author might be a virgin)

However if you hate dense leads just skip this. I mean this guy is 30 years old and he doesn't know anything man.
Spoiler

There's this girl, who I think has become a recurring joke by now, who always masturbates and it is so clear that she does it so much so that even a 13 y/o would know what she's doing. But this guy remains oblivious

[collapse]
One other thing. Why did the author make him a 30 y/o. As many pointed out, having 15-18 y/os fawn over a 30 y/o is disgusting. At least make him fresh out of college at 23/24 or maybe increase the ages of the girls.

There are so many things to nitpick about the story but honestly it all comes down to preference. If you are a casual reader that enjoys this kind of stories, you would probably love it. <<less
3 Likes · Like Permalink | Report
Xadro
Xadro rated it
June 6, 2016
Status: c170
Dropped it after Chapter 170, it just started getting ridiculous, up until that its a decent read I guess, if you don't mind the cliche of the overbearing younger sister who uses violence non-stop.
3 Likes · Like Permalink | Report
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