The Ramparts of Ice

The Ramparts of Ice

Episodes

7 Aired

Next Episode：第7話 · 2026.05.14 (木)

Lines and Walls

EP 01

2026.04.02 (木)·23分

Lines and Walls

線と壁

High school freshman year. Koyuki, who has kept her distance from others due to trauma from her middle school days, expected the second semester to end without incident. However, one day, she is approached by Minato, a student from another class she has never met before. From that moment on, Koyuki's quietly maintained daily life begins to change little by little.

The Locksmith

EP 02

2026.04.09 (木)·23分

The Locksmith

鍵師

Youta steps in to rescue Koyuki when she is troubled by an unwanted pickup attempt. As an acquaintance of Miki since middle school who knows her true self, Youta gradually wins Koyuki's trust as she begins to open up to him. Meanwhile, Minato, who has always been concerned about the solitary Koyuki, becomes intrigued by their relationship after seeing her and Youta together.

3+(←)1

EP 03

2026.04.16 (木)·23分

3+(←)1

3+(←)1

Koyuki, Miki, and Youta are studying together when Minato joins them. Miki is wary of Minato's interest in Koyuki, but Koyuki mistakenly thinks Miki has feelings for Minato. With their intentions crossing paths, the four of them continue to deepen their interaction.

Inviolable

EP 04

2026.04.23 (木)·23分

Inviolable

不可侵

Minato tries to get closer to Koyuki. However, Koyuki feels bewildered by the thought of her inner self being known and pulls away. During this time, Koyuki's middle school classmate, Igarashi, comes to Meiten High School for a joint soccer club practice. Minato asks Igarashi if he knows Koyuki, but—

Change

EP 05

2026.04.30 (木)·23分

Change

変化

Minato is shocked after being rejected by Koyuki. Meanwhile, Koyuki regrets having lashed out at Minato. Youta, who witnessed their misunderstanding firsthand, approaches Koyuki to resolve the tension between them and mentions that he had heard about her from Miki during middle school.

New Semester

EP 06

2026.05.07 (木)·23分

New Semester

新学期

After talking with Minato, Koyuki clears up the tension between them, but Minato begins to find himself thinking about her. Koyuki visits Miki's part-time job with Youta. Miki starts to think that Koyuki and Youta might be getting close. Meanwhile, Minato gets the wrong idea, thinking that Koyuki might have feelings for Youta...

Solitude and the Individual

EP 07

2026.05.14 (木)·23分

Solitude and the Individual

孤と個

Koyuki, who happened to meet Youta's mother, learns about Youta's family situation and the painful emotions he has been harboring. Having experienced her parents' divorce, Koyuki worries about Youta and stays close to support him. Touched by Koyuki's kindness, Youta confesses another feeling he has been holding onto.