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Season 1
Episode 1:
Lines and Walls
Episode 2:
Locksmith
Episode 3:
3+(←)1
Episode 4:
Impenetrable
Episode 5:
Change
Episode 6:
New Semester
Episode 7:
Loneliness and Solitude
Episode 8:
On Equal Footing
Episode 9:
Self-Awareness
Episode 10:
Spring
Episode 11:
Inversion
Episode 12:
Thunder
Episode 13:
Perception
Episode 14:
Bombshell
Episode 15:
Clouds and Rain
Episode 16:
Episode 16
Episode 17:
Episode 17
Episode 18:
Episode 18
Episode 19:
Episode 19
Episode 20:
Episode 20
Episode 21:
Episode 21
Episode 22:
Episode 22
Episode 23:
Episode 23
Episode 24:
Episode 24
Episode 25:
Episode 25
Episode 26:
Episode 26
Episode 27:
Episode 27
Episode 28:
Episode 28
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The Ramparts of Ice
Overview:
Weighed down by memories she can't shake, high schooler Koyuki Hikawa keeps everyone at arm's length — until three schoolmates draw her out of her shell.
First Air Date: 2026-04-02
Genre:
Seasons: 1
Episodes: 28
Episode Duration: 24 min
Status: Returning Series
Production: Studio KAI
