The official website for the anime Koori no Jouheki (The Ramparts of Ice) has announced the first trailer for the series and a new visual.
The anime adaptation of Koori no Jouheki is confirmed for release in the April 2026 season.
Production
- Original work: Agasawa Koucha (Jump Comics)
- Director: Mankyu
- Composition: Yasuhiro Nakanishi
- Character design: Miki Ogino
- Sound: Kanade Sakuma, Natsumi Tabuchi
- Original work: Margaret Magazine (editorial department)
- Animation: Studio KAI
Koori no Jouheki Synopsis
Koyuki Hikawa is a high school student who has difficulty interacting with people and ends up building a barrier between herself and others. Her only exception is her childhood friend, Miki Azumi. Aside from that, Koyuki prefers to spend her days in silence and keeping to herself. Until, suddenly, Minato Amemiya appears—a boy who insists on getting close to her without giving her any room to resist.
The Ramparts of Ice (氷の城壁, Koori no Jyōheki) is a Japanese manga written and illustrated by Kōcha Agasawa. It began as a webtoon and was later serialized on Line's digital manga service, Line Manga, from January 2020 to April 2022. Shueisha subsequently collected the series into fourteen tankōbon volumes, published between July 2023 and February 2025.
Source: Official Website