The Ramparts of Ice Season 1 poster

The Ramparts of Ice Season 1

28 Episodes First aired Apr 2, 2026 TMDB★7.7

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.

Episodes

E1
1. Lines and Walls
Apr 2, 2026 · 24m

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.

E2
2. Locksmith
Apr 9, 2026 · 24m

To Koyuki's relief, Yota comes to her rescue. After their initial study session, they grow more comfortable with each other — which unsettles Minato.

E3
3. 3+(←)1
Apr 16, 2026 · 24m

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.

E4
4. Impenetrable
Apr 23, 2026 · 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.

E5
5. Change
Apr 30, 2026 · 24m

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.

E6
6. New Semester
May 7, 2026 · 24m

As winter break ends, the usually calm Minato begins to realize his feelings are changing. Miki notices how close Yota and Koyuki have become.

E7
7. Loneliness and Solitude
May 14, 2026 · 24m

After reflecting on her own loneliness and worrying that Yota is bottling everything up, Koyuki reaches out and asks about his true feelings.

E8
8. On Equal Footing
May 21, 2026 · 24m

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.

E9
9. Self-Awareness
May 28, 2026 · 24m

Minato realizes how Koyuki is always on his mind. Later, while hanging out at the new mall, the misunderstanding between the four friends deepens.

E10
10. Spring
Jun 4, 2026 · 24m

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.

E11
11. Inversion
Jun 11, 2026 · 24m

Koyuki broods over her complicated past with Akine's sister, Manatsu, and what the first year might know. Meanwhile, Momoka sets her sights on Minato.

E12
12. Thunder
Jun 18, 2026 · 24m

As Koyuki slowly notices her new, surprising feelings towards Minato, first-year Momoka suddenly tries to cozy up to her — for reasons she can't grasp.

E13
13. Perception
Jun 25, 2026 · 24m

With Akine's words ringing in her head, Koyuki's feelings become complicated. Later, an accident causes something to shift between Miki and Yota.

E14
14. BombshellSeason Finale
Jul 2, 2026 · 24m

Unsure of how to move forward, Miki avoids Yota and confides in her colleagues. A bold Momoka confronts Koyuki about Minato and lights a fuse.

E15
15. Clouds and Rain
Oct 1, 2026 · 24m

Gray skies mirror the group's uneasy mood. Momoka senses a chance to get closer to Minato, while Miki can barely face Yota after turning him down.

E16
16. Stop and Go
Oct 8, 2026 · 24m

Cultural festival prep begins and Miki and Yota ease back to normal. But as Minato grapples with his desire to stay close to Koyuki, Momoka makes a move.

E17
17. Episode 17Airs Oct 15, 2026
Oct 15, 2026
E18
18. Episode 18Airs Oct 22, 2026
Oct 22, 2026
E19
19. Episode 19Airs Oct 29, 2026
Oct 29, 2026
E20
20. Episode 20Airs Nov 5, 2026
Nov 5, 2026
E21
21. Episode 21Airs Nov 12, 2026
Nov 12, 2026
E22
22. Episode 22Airs Nov 19, 2026
Nov 19, 2026
E23
23. Episode 23Airs Nov 26, 2026
Nov 26, 2026
E24
24. Episode 24Airs Dec 3, 2026
Dec 3, 2026
E25
25. Episode 25Airs Dec 10, 2026
Dec 10, 2026
E26
26. Episode 26Airs Dec 17, 2026
Dec 17, 2026
E27
27. Episode 27Airs Dec 24, 2026
Dec 24, 2026
E28
28. Episode 28Airs Dec 31, 2026
Dec 31, 2026