Isekai One Turn Kill Neesan: Ane Douhan no Isekai Seikatsu Hajimemashita

While saving a child from harm, otaku Asahi Ikusaba is transported to another world and believes he has reincarnated with cheat skills similar to those of the characters from his favorite games and novels. Unfortunately, reality strikes when an encounter with a powerful monster shows that he is still nothing more than an average person.

In this moment of extreme danger, Asahi instinctively calls out to his overly doting sister, Maya, who appears out of nowhere, possessing the overpowered abilities he thought he had. Maya is ecstatic to see her brother again and resolves to use her newfound powers to protect Asahi no matter what.

Together, the close-knit siblings attempt to find a way back home while enjoying their new lives. However, it soon becomes clear that their arrival in this world may have had a purpose. With the Demon King's overwhelmingly powerful army approaching, no one but Maya seems to be able to stand in its way.

[Written by MAL Rewrite]

Kilmaria Main

Koshimizu, Ami Japanese

Ikusaba, Maya Main

Shiraishi, Haruka Japanese

Ikusaba, Asahi Main

Sakakihara, Yuuki Japanese

Brigandine, Gloria Supporting

Tokui, Sora Japanese

Kuon Supporting

Kohara, Konomi Japanese

Tanya Supporting

Tsuchiya, Rio Japanese

Peaceful, Sophie Supporting

Waki, Azumi Japanese

Huan Supporting

Suzuki, Reiko Japanese

Lombert Supporting

Ootomari, Takaki Japanese

Anne Supporting

Takao, Kanon Japanese

Ozawa, Fumihiro Producer

Oomori, Shinji Producer

Nishiyama, Hiroshi Producer

Konishi, Yuuki Producer

Reviews

Jun 25, 2023

OrkusReOrca

Recommended

It's better than you thought

At first I also expect the most generic isekai plot with the over protective sister type from the name and sypnosis. But while yea most of it is still the generic plot, it's better and more wholesome than expected

First of all the isekai gimmick of course is unique, but unlike most other unique gimmick, this one does live up the gimmick and follow through and make the gimmick actually useful to the story.

Now for the sister part, it's still a bit weird and play in to the "weird" stuff, but there are still some moment that's very wholesome too.

The quality thought ... is VERY GOOD for its genre. The art quality is very good for a new studio, and the OST are very much good, fit in, and help with the story.

Overall, it's good for a trashy isekai of the season. It's a very good "trash" isekai that's consistently fun and enjoyable turn brain off anime.

Reviewer’s Rating: 8

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Jun 23, 2023

CodeBlazeFate

Mixed Feelings

Well-written

Anyone ever watch a show specifically for one character? Everyone has their own reason for watching something, no matter how odd or specific, no matter how the thing they decide to watch looks like it’ll turn out. Sometimes they just like the vibe and wanna experience that all the way. Sometimes they just really like a song or one of their favorite artists is doing the OP or ED. Sometimes clips have convinced you that a show has baller fights, or in the case of this show, clips have demonstrated one character who sells the anime alone.

It’s not the sister. In fact, let’s get this ... out of the way now, the titular one-hit-kill sister, Maya, is gonna be a make or break aspect of the show, as other aspects and faults will often be supported or hindered by the experience of watching a brocon constantly smother and even sexually harass her little brother. That’s certainly a fetish some people are down for, but perhaps the main reason this show is even worse-received than its contemporaries this season (many of which seem significantly more poorly-produced and include fucking Smartphone S2) is the fact that Maya is insufferable most of the time. They can range from kind of annoying to disturbing and even manipulative, though of course that means we’re supposed to find it gut-busting (or even nut-busting).

There are some decent bonding moments and snippets of conflict between her and actual MC Asahi. The weakling’s desire for independence and his need to grow stronger both for his own sense of self-improvement and his own sake given the dangerous world is combined with how adventurers caught falsifying their rank are dealt with, is an alright source of character development. Asahi’s a bumbling little squirt annoyed at how unlike basically every other isekai MC this season alone, his base stats are equivalent to how original world’s self without any crazy OP powers, therefore making it harder to do anything, including evading Maya’s advances until episode 4.

Still, slowly but surely, he trains (which we should see a bit more of), he acquires powers, and improves his evasion and techniques to the point of being able to make up for his weaknesses. He may not recognize it, perhaps many viewers don’t either, but Maya does, which helps elevate both characters up a little while solidifying perhaps more character development than some isekai consumers (and haters) are used to from one of these. She herself has some surprising moments of actually sincerely looking out for him in the shadows, even if it’s always preceded by or followed up by a gaudy sexual or romantic advance in the same episode.

Otherwise, this show has a comfortable enough vibe. Tensions are minimal but they get played upon to at least a perfunctory degree, and there is some decent comedy to be had with Asahi’s bullshitting or some of the character dynamics. The latter aspect is mainly found in the borderline sitcom arch nemesis who carries the show on its back, Kilmaria. She’s a blood knight demon, among the demon lord’s top guys, and after being saved by Asahi despite tryna fight him on the grounds of his reputation, she quickly develops her own dynamics with the main duo, evolving them over time. She goes from casually hanging out with and mildly looking down on Asahi as a sort of little brother, to someone who cares about him more and more with each passing adventure. She goes from seeing Maya as this insufferable and hypocritical rival to one she eventually starts getting along with and making fun of. Perhaps her best showing is in episode 5 where, in a human disguise, she starts being excited by all the little things in a human society like horses, bridges, and the weak masses before rubbing Asahi the wrong way about how weak and inconvenient being a human must be.

Of course, the show never hard commits to any conflicts it dredges up, save for one example that introduces one of Asahi’s eventual harem members he builds up over time, but the inklings are welcome enough and some of them get just enough exploration without making the show actively need to take itself seriously. The other characters in this show are…fine? Sophie the healer is kind of annoying as an overzealous Asahi-worshiper, Tanya’s the quest-giver and total fangirl who does get an ok story with her little brother who also looks up to Asahi. Gloria’s a fun meathead girl who eventually swaps out her suspicions towards Asahi for a dorkaholic romantic interest in him that her servant, Kuon, attempts to wingman. She’s probably the second or third most fun girl in the show. Some of the other side characters like the eventually washed-up adventurer Siegfriend are amusing as well, especially when the source of his party’s humiliating downfall unknowingly greets him again.

The cast is honestly on the upper half of isekai rosters in all honesty, and you bet that Kilmaria makes at least some of them bounce off her. Even without her elevating everything for most of the show, eventually enough of them come into their own to help make the cast surprisingly decent on the whole. They’re actually kinda funny, with nearly every episode having at least one funny moment and a few bits actually being kinda hilarious. It’s also oddly nice how much they back each other up, defending each other’s character in the face of whoever’s goading, intimidating, or otherwise confronting them. It adds a sense of camaraderie to everyone that can’t quite be found in a lot of this show’s contemporaries, even Slime, and that series actively has a community being built from the ground up. The ways everyone comes together in the finale are rather fun and rewarding to see as a result of everything.

Another aspect of the show that’s better than it realistically should be is the visuals. For the most part, it looks pretty subpar. It’s Gekkou’s first release as a studio, and a directorial debut by Hiroaki Takagi, and it could be worse on either front. Sometimes it absolutely is. The show’s production is so jittery that while 60-95% of the time it looks about what you’d expect from your average seasonal, sometimes it’ll either dip into astonishingly terrible territory or bust out a couple of surprisingly decent cuts. There are plenty of animation errors even outside of the freakish drops in quality, like with the dragon in Kilmaria’s Chinese dress disappearing a lot. The action rarely gets past just ok, even when we get an oddly fine burst of sakuga. The volleyball scene in the beach episode (episode 11) is an atrocious minute of slideshows and the fanservice can range from perfunctory to downright crudely drawn, so just be glad this isn’t classified as an ecchi because as mediocre it is as an action show, it would fare even worse as an ecchi title.

The outlines tend to not stick out, but sometimes the show thickens them as part of a gag of for more climactic close-ups. The show also does play around with aspect ratios every now and then, like letterboxing in the first half of episode 1 and 4:3 in the flashback sequence that kicks off episode 7. The characters also deform into charmingly drawn chibis for a bunch of silly gags and spats, usually Maya and Kilmaria who also carry the brunt of the relatively amusing facial expressions. They do try to spice things up occasionally, and that is welcome. It honestly feels like there’s enough potential in the visuals that if it were made to simmer for another 3 months, the end result could have wound up being legitimately above average for a seasonal, let alone an isekai. Unfortunately, that’s not the case.

A more consistently mediocre aspect of the series is its music. The ED, Mukyuu Platonic” by VALIS is an oddly decent electropop song with hints of melancholy in it, which makes it better than both OPs. The music is also fairly forgettable outside of Maya’s theme and Kilmaria’s theme which get spammed basically every episode. There is an occasionally decent track once in a while like when Kilmaria tries to get Asahi to abandon Maya and become a demon, and there’s an alright insert in episode 11 that gives the siblings some time alone to discuss how far they’ve come in a mostly pleasant scene. However, that doesn’t really elevate the music much, as it’s still incredibly whatever across the board.

One Turn Kill Neesan can be a pleasant, goofy ride that revels in its own absurdity while boasting more character development and fun dynamics than one might expect. It’s also got brocon shit that will either elevate the experience for you if you’re into it, or make the show a trudge to sit through for the good bits if you aren’t. It’s very annoying and kind of embarrassing, but it is kinda cute and fun, especially whenever characters are being dorks or having each other’s back. Still, there’s enough here to elevate the show well above the likes of Smartphone, Master of Ragnarok, Arifureta, or probably half of the isekai you’re watching this season (because Kamikatsu looks like it was edited by YouTubers [derogatory] and animated by an outsourced studio in another country). In terms of an isekai you can just sit back and watch, you can do a lot worse. Name another isekai that has Kilmaria in it.

Also, this is a non-Sunrise show, non-mecha seasonal at that, which features a relatively acceptable mecha transformation sequence...in 2D. Wasted as it is on a last-minute outing and one-shot, that fact alone is borderline commendable for one of these, especially considering it’s an isekai.

Reviewer’s Rating: 5

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May 20, 2024

Zeno_Artaxerxes

Not Recommended

A normal guy that gets transported in another world with his sister. He starts basically from 0, while his sister is OP af.

That s the context of the whole story... which can work, but not in this case. It is random, bad random... situations that don't really make sense, like you know your sister is the most OP character, why are you still worrying about her so much?? It's like 60% basic isekai story that you forget a day after, and it's also made in a kinda cringe way, at least to me because it's too perfect to the stereotype of an isekai, where of ... course he's gonna say those lines and stuff... so nothing original there. I would say 20% is like the jokes, some which were somewhat successful, but some aren't, which makes fun of some of the tropes in isekai anime (why not make the whole anime like this? would have been wayy better than what we got...). The rest are his sister or other girls hitting on him or something... especially his sister... yea... it's that type of relation, but he still refuses it at least... And for real, after this anime, you'll become quite numb to the trope of falling into boobs, cuz it happens so damn much and it didn't have the comedic timing, at least for me. If you try to think too much about the story and stuff, it's just gonna hurt... it's a stupid kind of show in short. Doesn't make much sense in everything they do or happens, but it still goes on.

When it comes to characters, you don't have much to look towards as well. The only good one is Kilmaria, and maybe his sister, but she becomes a bit annoying sometimes. The rest of the girls are one dimension with no depth. The dynamic between characters is also weird overall. Again, it goes towards the idea of "stupid fun"...

There are some redeeming qualities I would say. One is the art. I thought this anime would rely heavely on CGI, but it didn't, none at all. So props to them for that. Alas, it wasn't that good of an art, but it still was pretty good for the most part.

Another quality is the ED... man... the ED is one of the best, at least until the last part of it which is okayish only.... kinda makes you theorize a bit about his situation. This anime didn't deserve such a cool ED... it doesn't fit it...

Story: 6 -- Not much of a story, too many stupid situations and the jokes are hit or miss...

Art: 8 -- Pretty good art, no CGI.

Music: 9 -- The ED is pretty good. And they also have 2 different OPs, in a 12 eps core... that's something ig.

Characters: 7 -- No depth, no nothing. The only one I enjoyed was Kilmaria, but even she didn't have much screen time...

Enjoyment: 7 -- Sometimes i was nice, sometimes it wasn't at all, but most of the time, it wasn't... too many basic forgetable moments, too many no thoughts put into scenes... I can't say I enjoy the "stupid fun" stuff, at least not in this manner...

Overall: 6

Right now it has 6.35 from 37.174 votes Ranked #8160 Popularity #2089 Members 99,193 as of 20/05/2024.
I can't say I recommend it to anyone but to those that wanna watch something and really don't have anything else, or like the "stupid fun" idea coupled with an ultra generic isekai made in cringe way. You won't get much out of this imo... Better spend it on another thing...

Reviewer’s Rating: 6

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	About the adaptation TEMPEST_1 - May 21	6 replies	by TEMPEST_1 »» May 24, 10:01 PM
	Poll: Isekai One Turn Kill Neesan: Ane Douhan no Isekai Seikatsu Hajimemashita Episode 1 Discussion ( 1 2 3 ) Stark700 - Apr 7, 2023	121 replies	by Jay_Woo »» Apr 14, 5:34 AM
	I gave this show a 9/10! I've done my part! LordKirkis - Feb 7	32 replies	by Treyv0n »» Mar 25, 4:55 PM
	OP versus ED Disparity absolutelynormal - Apr 29, 2023	15 replies	by StarCry »» Mar 7, 8:40 PM
	Love the sense of humor in this show! LordKirkis - Jun 16, 2023	9 replies	by Gator »» Feb 20, 12:31 PM