Koyuki Hikawa
Main
Voiced by Anna Nagase · Japanese
The Ramparts of Ice
氷の城壁
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Status:Completed
Episodes:14
Type:TV
Released:Apr 02, 2026
Language:Japanese
Views:69
Studio:Studio Kai
Season:2026
Synopsis
Socially inept, Higawa Koyuki maintains a wall between herself and other people. She spends her time in high school alone, until she meets Amamiya Minato, a boy who keeps trying to close the distance between them for some reason?!
The loner Koyuki, the popular Miki, the boundary-less Minato, and the kind basketball player Youta. This is the story about four complicated and confused young people and their mixed up lives!
(Source: Margaret, translated)
Cast & Crew
Characters, voice actors & production staffCast 20
Minato Amamiya
Main
Voiced by Shouya Chiba · Japanese
Miki Azumi
Main
Voiced by Fuuka Izumi · Japanese
Youta Hino
Main
Voiced by Satoshi Inomata · Japanese
Uppi
Supporting
Tsubasa Igarashi
Supporting
Voiced by Chiaki Kobayashi · Japanese
Ponta
Supporting
Tsukiko Shimojima
Supporting
Voiced by Sakura Shinfuku · Japanese
Momoka Kuriki
Supporting
Voiced by Akari Kitou · Japanese
Yuki Azumi
Supporting
Voiced by Kakeru Hatano · Japanese
Akine Atagawa
Supporting
Voiced by Natsumi Kawaida · Japanese
Miharu
Supporting
Voiced by Miria Takagishi · Japanese
Manatsu Atagawa
Supporting
Voiced by Hazuki Ogino · Japanese
Mari
Supporting
Voiced by Saeko Kamijou · Japanese
Muko
Supporting
Voiced by Manatsu Murakami · Japanese
Mei
Supporting
Voiced by Mitsuho Kambe · Japanese
Minato no Kanojo
Supporting
Voiced by Minori Fujidera · Japanese
Tanaka
Supporting
Voiced by Kento Shiraishi · Japanese
Tatsu
Supporting
Voiced by Toshiki Watanabe · Japanese
Daichi Midorikawa
Supporting
Voiced by Gakuto Kajiwara · Japanese
Crew 20
Koucha Agasawa
Original Creator
Mankyuu
Director
Yasuhiro Nakanishi
Series Composition
Miki Ogino
Character Design
Eriko Itou
Sub Character Design
Yuuji Hamada
Prop Design
Yuuna Fueki
Costume Design
Kotono
Costume Design
Shin Maeda
Art Director
Shin Maeda
Art Design
Haruko Nobori
Color Design
Mika Watanabe
Director of Photography
Masato Yoshitake
Editing
Naoya Sakayori
CG Director
Kouhei Yoshida
Sound Director
Natsumi Tabuchi
Music
Kanade Sakuma
Music
Taiki Itou
Animation Producer
Hirokazu Shiba
Chief Animation Producer
Amanda Celine Miller
ADR Script (English)