Koori no Jouheki


The Ramparts of Ice

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Alternative Titles

Japanese: 氷の城壁
English: The Ramparts of Ice
More titles

Information

Type: TV
Episodes: Unknown
Status: Currently Airing
Aired: Apr 2, 2026 to ?
Premiered: Spring 2026
Broadcast: Thursdays at 23:56 (JST)
Licensors: None found, add some
Studios: Studio KAI
Source: Web manga
Genres: DramaDrama, RomanceRomance
Theme: SchoolSchool
Duration: 23 min.
Rating: PG-13 - Teens 13 or older

Statistics

Score: 7.801 (scored by 1076710,767 users)
1 indicates a weighted score.
Ranked: #11852
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #2825
Members: 76,496
Favorites: 172

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Streaming Platforms

7.80
Ranked #1185Popularity #2825Members 76,496
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Episodes: /?

Synopsis

On the surface, high school student Koyuki "Koyun" Hikawa seems unapproachable and terrifying to most other students. In reality, Koyun is just insecure and prone to overthinking due to her uncomfortable experiences in middle school. However, her chance encounter with two boys in school—Minato Amamiya and Youta Hino—sparks a change in her. Like her friend Miki Azumi, the boys are never afraid to approach Koyun and see her for who she really is.

Although Koyun starts spending more time with Miki, Minato, and Youta, she finds herself torn between her newfound bliss and her fear of getting too attached to others. Meanwhile, each of her friends quietly struggles with their own challenges. But as the new friend group continues to navigate high school together, Koyun and the others start to break out of their shells and enjoy their adolescence to the fullest.

[Written by MAL Rewrite]

Characters & Voice Actors


Staff

Itou, Taiki
Producer, Episode Director
Nakazawa, Nobuya
Producer


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Opening Theme

Preview
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"Toumei (透明)" by Novelbright
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Ending Theme

"Sakasama (逆様)" by Polkadot Stingray (ポルカドットスティングレイ)




Reviews

May 1, 2026
Preliminary (5/? eps)
The ramparts of ice
This anime has beautiful visuals, the story can still be developed further. As for the MC, yes I quite understand his behavior with the school drama that often happens being quite emotional. If you like introverted school stories or misunderstanding dramas, this one is perfect. I like beautiful openings and endings. Art style reminds me of anime you pollar lol. The character reactions look good, and the friendship development is good. Oh, the characters are pretty smart I guess? But some represent different people. The storyline is quite good, but it could be developed into a simple or more complex conflict.
Apr 23, 2026
Preliminary (4/? eps)
Absolutely incredible in my opinion. I watched you and I are polar opposites and that was one of my favourite romance animes and this anime is literally the polar opposite. The show feels very realistic and is really gripping. The dynamics between all of the characters so far are really intriguing and I believe it will only get better. The way this anime portrays students that build up walls against others and keep themselves locked away and to them selves is incredible. So glad that this show isn’t a love triangle because that trope is already really worn out. Can’t wait to see where this ...
May 1, 2026
FunnyFunny
Preliminary (5/? eps)
The male MC, Minato comes off as a self-righteous playboy who constantly inserts himself into other people’s lives, not out of genuine concern, but to feed his own ego. Both creepy and disgusting.

It feels like the lowest form of narcissism disguised as “kindness,” which just made him pathetic and unbearable to watch.

The female MC deserved better writing. She’s portrayed as weak and apologetic for simply being herself, which is frustrating and uncomfortable.

On top of that, the show completely misses the mark on depicting the reality of school bullying. It feels shallow and unrealistic, lacking any real depth or understanding of the issue.

Overall, it’s a poorly ...

Interest Stacks

35 Entries · 7 Restacks
19 Entries · 3 Restacks
26 Entries · 6 Restacks

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