Anna Nagase
Koyuki Hikawa (voice)
Series SeasonSeason 1 episodes2026
The Ramparts of Ice
Season 1
No season overview available.
Episodes
Each episode has its own detail page.
Episode 124 min2026-04-02
Lines and Walls
After her classmates run off in fear, Koyuki makes faces in a mirror to figure out why everyone finds her scary. Suddenly, a boy sneaks up behind her.
Episode 224 min2026-04-09
Locksmith
To Koyuki's relief, Yota comes to her rescue. After their initial study session, they grow more comfortable with each other — which unsettles Minato.
Episode 324 min2026-04-16
3+(←)1
Bothered that Koyuki still has her guard up around him, Minato tries to make small talk. As Miki grows suspicious of his intentions, she confronts him.
Episode 424 min2026-04-23
Impenetrable
At Miki's prodding, Minato clarifies his interest in her best friend. An unexpected visitor triggers Koyuki's bad memories, leading to a harsh outburst.
Episode 524 min2026-04-30
Change
Koyuki mulls over the tense exchange in the infirmary. After Yota clears the air, she tries to have an honest conversation with Minato for the first time.
Episode 624 min2026-05-07
New Semester
As winter break ends, the usually calm Minato begins to realize his feelings are changing. Miki notices how close Yota and Koyuki have become.
Episode 724 min2026-05-14
Loneliness and Solitude
After reflecting on her own loneliness and worrying that Yota is bottling everything up, Koyuki reaches out and asks about his true feelings.
Episode 824 min2026-05-21
On Equal Footing
Determined not to mess up high school, Miki has faked her persona since day one. But not being herself around her classmates starts to wear her down.
Episode 92026-05-28
Episode 9
No episode overview available.
Episode 102026-06-04
Episode 10
No episode overview available.
Episode 112026-06-11
Episode 11
No episode overview available.
Episode 122026-06-18
Episode 12
No episode overview available.