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Anime Detail

Koori no Jouheki

The Ramparts of Ice

TV Currently Airing PG-13 - Teens 13 or older Community Score: 7.80 Source: Web manga

Episodes: N/A

Aired: Apr 2, 2026 to ?

Duration: 23 min

Synopsis

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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]

Stats at a glance

Performance and release metrics in a quick-scan format.

Rank

1186

Popularity

2811

Episodes

Not available

Aired

Apr 2, 2026 to ?

Duration

23 min

Members / Favorites

77510 / 178

Studios

Production studios attached to this anime.

Studio KAI

Genres and Themes

Category signals to help you evaluate tone and style.

Genre: Drama Genre: Romance Theme: School

Where to Watch

Official and legal options. Availability may vary by region.

Subscription / Paid

External and Legal Links

Official and reference links associated with this title.

Characters

Main cast and notable voices linked to this anime.

Amamiya, Minato

Amamiya, Minato

Main

Voice actors: Chiba, Shouya, Castañeda, Arturo, McCarley, Kyle

Azumi, Miki

Azumi, Miki

Main

Voice actors: Izumi, Fuuka, Mora, Zoé, Salustri, Cecilia

Hikawa, Koyuki

Hikawa, Koyuki

Main

Voice actors: Nagase, Anna, Mendoza, Itzel, Roma, Lucrezia

Hino, Youta

Hino, Youta

Main

Voice actors: Inomata, Satoshi, Estefanuto, Vini, González, Dalí

Akahoshi, Hayato

Akahoshi, Hayato

Supporting

Voice actors: Yasuda, Rikuya, Trouillard, Kylian, Suarez, Emanuele

Amamiya, Nagisa

Amamiya, Nagisa

Supporting

Voice actors: Yamamura, Hibiku, Franco, Priscila, Lambotte, Jessie

Amano, Sora

Amano, Sora

Supporting

Voice actors: Kamijou, Saeko, Lambotte, Jessie

Atagawa, Akine

Atagawa, Akine

Supporting

Voice actors: Kawaida, Natsumi

Atagawa, Manatsu

Atagawa, Manatsu

Supporting

Voice actors: Ogino, Hazuki, Quinto, Bruna

Azumi, Yuuki

Azumi, Yuuki

Supporting

Voice actors: Hatano, Kakeru

Fujita

Fujita

Supporting

Voice actors: Ogino, Hazuki

Igarashi, Tsubasa

Igarashi, Tsubasa

Supporting

Voice actors: Kobayashi, Chiaki, Colt Levy, Ryan, Martins, Gabriel

Kaneda, Ginnosuke

Kaneda, Ginnosuke

Supporting

Voice actors: Mineta, Hiromu, Mafra, João Vitor

Kuriki, Momoka

Kuriki, Momoka

Supporting

Voice actors: Kitou, Akari

Matsumoto

Matsumoto

Supporting

Voice actors: Kousaka, Atsushi

Midorikawa, Daichi

Midorikawa, Daichi

Supporting

Voice actors: Kajiwara, Gakuto

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