The MC possesses an extra in a game he was a veteran in, but someone also possessed the protagonist of that novel. They work together to make sure they reach the ending and defeat the final boss, but the person who possessed the protagonist of the novel turns out to be a violent homo yandere. The Homo yandere protagonist actively kills all the relevant side cast to monopolize MC for himself. After MC discovers this, he confronts the yandere who imprisons MC before going to face the final boss. The yandere eventually loses to the final boss and MC regresses due to some mysterious circumstances which readers explore later on.

After regressing, MC resolves to kill the player and adorn his mantle to save the world on his own. Yandere's arc is explored way later on in the novel, so the yandere does have impact on the plot.

MC is morally a good person, but he isn't a self-righteous prick, unlike the first impression he gives off. He won't go out of his way to save every random Tina character who he didn't even interact with by screwing over his allies and putting the whole plan in jeopardy. He is quite rational. He strives to save everyone he could, everyone in his range of awareness he would give his all to save them.

His oaths are "I will save the world" and "I won't ignore the misfortune of others."

He also might come off dense when it comes to romantic relationships, but he gradually improves on that aspect and even manages to overcome his dense nature. The guy just needs some obvious hints like, for example when one of the heroines kissed him. He definitely didn't put it off as an accident or some BS like we have seen many a times in Japanese novel scene.

There is character growth throughout the story. MC made plans, then backup plans, but still during the implementation phase something gets twisted somehow due to other real life factors, and he has to improvise in real time, so he struggles a lot in fights.

Top-notch action scenes and side cast are the reasons why it was in top30 of Munpia rankings during its serialization phase.

I have read the novel in Hangul and I can assure the writing style the way the characters are fleshed out were quite the joy to read.

In fact, unlike this novel, novels such as Ending Maker have been criticized for doing not a good job when it comes to fleshing out the side cast. Only the FMC and MC were fleshed out there.

Side cast have real impact on the plot and gives you some of the most memorable moments. One of my favourite battles in the whole story is a battle between one of the heroines and a villain. These aspects of the novel have been praised not only by me but numerous other reviewers, both on Riddibooks and Munpia.

I don't want to spoil too much, so I will give you a few basic areas that this novel did a good job at.

1. I'm a fan of action guys and this novel has really great action scenes which the author beautifully portrays and is one of the charms of the work. Author stood out for his skillful use of bedtime fairy tale references and using those to write an original action sequence. There are battles with dragons happening atop the bean stalk (referred to here as world tree, which grows from a seed) to recreation of some Irish mythological scenes. Those were the most memorable aspects of the novel.

2. Character growth, MC gradually grows from weak to strong even though it feels like he is always on the advantage. He does struggle a lot in the fights.

3. The system-- It's inspired from the webtoon knight run. It doesn't do generic hand-holding, so the MC still had to struggle a lot

4. Harem aspect was well done in the novel, none of the heroines gets left out. So people who don't want their best girl to lose can rest easy.

1. Author kinda sometimes fails to deal with the character explosion. Partly due to drama between author and Munpia.

2. Harem - it's a relevant aspect of the novel it's a con for those who hate harem. If you even minutely hate harem I would advise you to stay away from this novel. Since I have already seen enough readers noticing the tag yet still dive into it knowing full well that its harem. Eventually, regretting their decision.

It may not be something original or groundbreaking, but I had fun reading it. Author used generic stuff but he added his own elements to make the novel fun and unique in his own aspect.

example of an irritating interaction.

The protagonist is training with the spear against a super focused wind elemental and giving his maximum, then a ret*rd interrupts him to offer food? Serious? Can you imagine being at the gym doing a bench press, 80kg and an idiot stops by your side and offers you sweet potatoes with sugar?

Poha.. They are in a training center to train warriors against the END OF THE WORLD, a mage with so much potential is wasting time making food for others and bothering? Shouldn't she, I don't know.. Be training?

Without a doubt the most memorable first chapter I've read,

The story starts 3 years after our protagonist has possessed a side character at a game he played.

For 3 years he has been working with the protagonist of the novel- "The Player", another possessor who as "The Player" had access to the status screen which made him a lot stronger.

It turns out that for 3 years The Player has been manopalizing our protagonist for himself and killing important side characters. He turned yandere and locked our protagonist and went to fight with the final boss.

Even though he monopolized everything for himself he had lost.

Our protagonist then regresses 3 years to the past and vows to kill him

Then for the wider story, turns out the world is ending if things go as expected and MC is skilled but weak as a salsa with no chili in it. So to spice things up he goes into Irish Geas/oath magic that doesnt just punish liars, it rewards the faithful and honest.

And so he promises to save the world and undo whatever bad stuff he comes across. The world also knowing what's up understandably approves of someone trying to save it and it goes from there. No direct powerup but growth boosters applied successfully.

Marie is a Ojou-sama vampire potato sugar mommy

The protagonist is a gay mu*der hobo who goes Yandere for our MC. After tying up MC to go fight the final boss, the protagonist loses despite how 'efficient' he was and both he and Korin get regressed back to when they first possessed their characters.

first iteration

3 years of experience from the first iteration.

and a human turned vampire who was saved by Korin

Recently I just finished “I Killed the Player of the Academy”, finishing about 160 translated novels on GenesisTL with RainTL (fabulous TL of Kidnapped Dragons, one my favorite series with an amazing translation) and reading the rest MTL. While the series is about 288 chapters with about 250 part of the main story and 30 side stories, which is pretty short in comparison to many other web novels that I have read, the length of each chapter is pretty long in my opinion, which took me about 2 weeks to read all chapters even though I thought I would be done within a week.

So how is the novel? My answer is “I f*cking hate the Japanese MC oblivious to girls liking him trope more than ever”, but everything else seems solid to say the least. The story is basically a isekai-regression fantasy harem with a school-life political rom-com in the mix. Is it original? No... but the world building is surprisingly well-made, with an answer for many questions I had as a reader about the world. Additionally, the main [harem] characters were well done in terms of depth and story, however there is a lack of focus on everyone else, leading me to believe that the author had a singular focus on the harem above everything else. Like there is a druid and golem maker that other than in action scenes or pivotal plot point don’t really show up, the friends of the MC are only relevant in the early chapters or in rom-com moments, and the one religious male side character (Germain) who is a spy that shows up in 1 rom-com and 1 pivotable plot point, but at least he is the only male character other than MC that gets into a relationship during the story. So in short, I like the characters, but I wished the author took more time to make the side characters more fleshed out. It was not a question of adding more content, because then I would feel like the stories would be boring since it’s a character I’m not interested in, but rather making the roles of the side characters more relevant and/or making them more interesting to interact with the main character would be the better answer here.

But enough about the side characters, what do I feel about the main [harem] characters? I will be honest, I have a weakness against 3 types of female characters in novels: yandere, vampires, and mommy, which this novel fully delivers in one girl out of the 8 and I will not be ashamed because these types of characters tend to be well written. I’m not coping, it’s just ever since I caught up with Arifureta, there was a severe lack of vampire characters that I could read about that were actually interesting. There are other main [harem] characters, the weakest of which I would easily say in terms of being fleshed out is Erin, but I also wished Miriam had more depth other than “the past wife of MC who r*ped him and ended up having a child, only to die”. All in all, the characters were decently throughout, the only complaint I will have is that the romance doesn’t really progress until the side story, leading to an endless tease and fanservice throughout the main story that will infuriate yet somewhat satisfy anyone reading this primarily for romance. It will test your patience and your anger management, many times I would be laughing at the rom-com throughout this novel, yet be one step away from throwing away my phone because of the dense ass black hole of a main character. But at least he grew aware by the later parts of the novel I guess.

How about the plot? Eh, could be worse but it was definitely one of the plots of all time. The arcs are okay in length each, there really wasn’t one I wanted to skip in particular, nor did I feel like each story element had me thinking “but didn’t they just do something similar earlier?”. Having said that, I will be rereading this so this will be updated in the future if I do find any concerning plot holes. I like the fact that the butterfly effect is more prevalent in this story than most other isekai-regression stories I’ve seen out there, it makes each action in the story have me thinking “this is going to screw up for the main character somehow” and it does to oftentimes a hilarious degree. Saving Marie in the beginning leads to a huge butterfly effect in itself, as she is so loved by her really wealthy family, the wealthiest in the land in fact, that she just pays through everything that the main characters otherwise would have suffered from.

The main character, Corin, deserves some mention here. Other than being a dense black hole of a romantic protagonist, he’s fundamentally a great guy and I would say he would be the typical role model of a hero except for two aspects: obviously his romantic aspects, but also his crazy tendencies. The guy literally cosplays the Joker to harass first years during a training session, he also becomes Michael Jackson and moonwalks to raise troop morale. To say that he is crazy is saying little, but the author does a great job of incorporating such lunatic elements in the story as if they were natural, and Corin is the main reason why I consider this novel to be more of a comedy than just a action-thriller isekai fantasy. Also, he’s a really nice guy, and it’s really nice to see justification behind his actions even if the motivation of “I don’t want anyone to die unnecessarily” is a bit cheesy. It might be just me, but that lack of novels that portray a simple-based hero is quite shocking, as while it is a really easy character to portray as a main protagonist, it’s really hard to have such a character mesh with more complex side characters, the lack of which leads to a really boring character cast. I would say that Corin is probably one of my favorite main characters if I could forgive his romantic denseness.

Side stories have all of the “plot” but it is also funny in its own way. I definitely think however that you have to be invested into the characters to enjoy them, so there’s that too. Remember what I said earlier about the main story having a lack of romance? While there are some romantic elements, it’s definitely not the main focus. The author wrote in favor of progressing the plot which is fine, but it becomes increasingly evident that the author is unable to write crucial romantic progression with plot progression, leading to a lot of flirting and teasing around the boundary until the main character straight up says that he will not pursue a relationship until the story is over. I am biased thinking that the relationship should progress alongside the story, but if you are okay with that not occurring, then this shouldn’t be really a problem.

In summary, read if you like a comedic take on an isekai-regression fantasy, however your patience will be tested on the romantic aspects. Main cast of characters are well made for the most part and likable, however the author doesn’t seem to flesh out the other characters that much, leading to the story having focus on a small cast of characters for the most part.

An example was when the MC is expressing his heartfelt gratitude towards his Master for taking care of him in the last iteration going even as far as sacrificing her life to save his but the way he is doing it is way too flirty (I mean who in the hell isn't going to misunderstand when first he said to go on a date with him, he then did a kabedon and kissed her on the forehead) despite how MC does not seem to love her in a romantic way leading to his Master misunderstanding what kind of relationship they had in his last life. Instead of focusing on the deep emotions of gratitude the MC is feeling, I am distracted by how unaware the MC is that his actions are conveying something entirely different than what he is intending and how weirdly innocent this thousand year old goddess is.

Park-Sihoo still sucks. Motives suck. Personality sucks. How the author handled her is very forgiving (maybe too forgiving), but I guess that's what makes our MC special and maybe a bit more realistic. Doesn't change that Park-Sihoo is still a disgusting person who got lucky that MC is a benevolent guy.