The Ramparts of Ice

Season 1

2026 · 28 episodes · 8h 24m in all · 7.9/10

Episodes

1. 

   1. Lines and Walls

   2 Apr 2026 · 24 min · 7.5/10

   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.

2. 

   2. Locksmith

   9 Apr 2026 · 24 min · 8.0/10

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

3. 

   3. 3+(←)1

   16 Apr 2026 · 24 min · 7.0/10

   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.

4. 

   4. Impenetrable

   23 Apr 2026 · 24 min · 7.0/10

   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.

5. 

   5. Change

   30 Apr 2026 · 24 min · 7.2/10

   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.

6. 

   6. New Semester

   7 May 2026 · 24 min · 7.2/10

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

7. 

   7. Loneliness and Solitude

   14 May 2026 · 24 min · 8.0/10

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

8. 

   8. On Equal Footing

   21 May 2026 · 24 min · 7.6/10

   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.

9. 

   9. Self-Awareness

   28 May 2026 · 24 min · 8.0/10

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

10. 

    10. Spring

    4 Jun 2026 · 24 min · 8.4/10

    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.

11. 

    11. Inversion

    11 Jun 2026 · 24 min · 8.2/10

    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.

12. 

    12. Thunder

    18 Jun 2026 · 24 min · 7.8/10

    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.

13. 

    13. Perception

    25 Jun 2026 · 24 min · 7.6/10

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

14. 

    14. Bombshell

    2 Jul 2026 · 24 min · 8.8/10

    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.

15. 

    15. Clouds and Rain

    1 Oct 2026 · 24 min · 8.7/10

    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.

16. 

    16. Stop and Go

    8 Oct 2026 · 24 min · 8.0/10

    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.

17. 

    17. True Feelings

    15 Oct 2026 · 24 min · 8.0/10

    Reeling from the news that Minato and Momoka are dating, Koyuki fights to keep her composure. Miki, meanwhile, confronts Minato about his true intentions.

18. 

    18. Relief

    22 Oct 2026 · 24 min · 8.3/10

    In agony over Minato, Koyuki confides in Tsukiko — who sees what Koyuki refuses to. Then a run-in with Igarashi forces her to reflect on her own walls.

19. 

    19. Transition

    29 Oct 2026 · 24 min · 8.0/10

    Miki watches the group joke around at the bowling alley, amazed by how normal it all seems. Beneath the surface, though, no one's feelings are the same.

20. 

    20. Cultural Festival

    5 Nov 2026 · 24 min · 7.5/10

    Summer's over and Class 2-2 takes the stage for the cultural festival. But while everyone else celebrates, Minato slowly realizes that something is off.

21. 

    21. Misunderstandings

    12 Nov 2026 · 24 min · 8.0/10

    Momoka suddenly asks Koyuki to meet — makes a pointed demand. Later, a surprise visitor at home forces Minato to face the reason for his stress.

22. 22

    22. Episode 22

    Airs 19 Nov 2026

23. 23

    23. Episode 23

    Airs 26 Nov 2026

24. 24

    24. Episode 24

    Airs 3 Dec 2026

25. 25

    25. Episode 25

    Airs 10 Dec 2026

26. 26

    26. Episode 26

    Airs 17 Dec 2026

27. 27

    27. Episode 27

    Airs 24 Dec 2026

28. 28

    28. Episode 28

    Airs 31 Dec 2026