S1 ONGOING
TV Series · Animation, Drama · 2026
Watch The Ramparts of Ice | 2026
NOW PLAYING
·
S1 E4 - Impenetrable
·
24m
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.
Rating
* 8.1 / 10
Episodes
12 Total
Premiered
April 2, 2026
Status
Ongoing
Language
Japanese
Country
Japan
Network
Views
0
Quality
4K · HDR10
Votes
10
10 of 10 episodes · Season 1
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.
8.1
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.
8.1
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.
8.1
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.
8.1
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.
8.1
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.
8.1
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.
8.1
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.
8.1
Self-awareness
Minato realizes how Koyuki is always on his mind. Later, while hanging out at the new mall, the misunderstanding between the four friends deepens.
8.1
Spring
A spring break trip to the amusement park brings the four friends closer. Back at school, Koyuki's surprised by a familiar face — and Minato takes notice.
8.1
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Episode Synopsis
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.
Show Details
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.
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Episode 1
Lines and Walls
8.1
Episode 2
Locksmith
8.1
Episode 3
3+(←)1
8.1
NOW PLAYING
Impenetrable
8.1
Episode 5
Change
8.1
Episode 6
New Semester
8.1
Episode 7
Loneliness and Solitude
8.1
Episode 8
On Equal Footing
8.1
Episode 9
Self-awareness
8.1
Episode 10
Spring
8.1