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The Best Episodes of The Ramparts of Ice Season 1

Every episode of The Ramparts of Ice Season 1 ranked from best to worst. Discover the Best Episodes of The Ramparts of Ice Season 1!

Binge this in 5h 12m•Peaking at 9.0/10

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 Rankings

  1. #1 Fan Favorite
    The Ramparts of Ice Season 1 Episode 1 - Lines and Walls
    6.8/10(4 votes)

    #1 - Lines and Walls

    S1:E1

    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.

    Director:Teru Ishii
    Writer:Yasuhiro Nakanishi

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  2. The Ramparts of Ice Season 1 Episode 2 - Locksmith
    7.3/10(3 votes)

    #2 - Locksmith

    S1:E2

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

    Director:Mamoru Enomoto
    Writer:Yasuhiro Nakanishi

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  3. The Ramparts of Ice Season 1 Episode 3 - 3+(←)1
    6.0/10(3 votes)

    #3 - 3+(←)1

    S1:E3

    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.

    Director:Yūichi Abe
    Writer:Yasuhiro Nakanishi

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  4. The Ramparts of Ice Season 1 Episode 4 - Impenetrable
    6.0/10(2 votes)

    #4 - Impenetrable

    S1:E4

    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.

    Director:Shigatsu Yoshikawa
    Writer:Yasuhiro Nakanishi

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  5. The Ramparts of Ice Season 1 Episode 5 - Change
    6.0/10(2 votes)

    #5 - Change

    S1:E5

    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.

    Director:Teru Ishii
    Writer:Yasuhiro Nakanishi

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  6. The Ramparts of Ice Season 1 Episode 6 - New Semester
    6.0/10(2 votes)

    #6 - New Semester

    S1:E6

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

    Director:Teru Ishii
    Writer:Yasuhiro Nakanishi

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  7. The Ramparts of Ice Season 1 Episode 7 - Loneliness and Solitude
    7.0/10(2 votes)

    #7 - Loneliness and Solitude

    S1:E7

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

    Director:Mamoru Enomoto
    Writer:Yuta Suzuki

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  8. The Ramparts of Ice Season 1 Episode 8 - On Equal Footing
    6.5/10(2 votes)

    #8 - On Equal Footing

    S1:E8

    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.

    Director:Yūichi Abe
    Writer:Yu Oshika

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  9. The Ramparts of Ice Season 1 Episode 9 - Self-Awareness
    7.5/10(2 votes)

    #9 - Self-Awareness

    S1:E9

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

    Director:Shigatsu Yoshikawa
    Writer:Yasuhiro Nakanishi

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  10. The Ramparts of Ice Season 1 Episode 10 - Spring
    7.0/10(1 votes)

    #10 - Spring

    S1:E10

    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.

    Director:Teru Ishii
    Writer:Yu Oshika

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  11. The Ramparts of Ice Season 1 Episode 11 - Inversion
    7.5/10(2 votes)

    #11 - Inversion

    S1:E11

    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.

    Director:Miichiro Kamenosono
    Writer:Yasuhiro Nakanishi

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  12. The Ramparts of Ice Season 1 Episode 12 - Thunder
    6.5/10(2 votes)

    #12 - Thunder

    S1:E12

    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.

    Directors:Teru Ishii, Takumi Yokoyama, Minagi Koga
    Writer:Kei Shimobayashi

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  13. The Ramparts of Ice Season 1 Episode 13 - Perception
    9.0/10(1 votes)

    #13 - Perception

    S1:E13

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

    Director:Yūichi Abe
    Writer:Yasuhiro Nakanishi

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Season 1 Ratings Summary

"Lines and Walls" is the best rated episode of "The Ramparts of Ice" season 1. It scored 6.8/10 based on 4 votes. Directed by Teru Ishii and written by Yasuhiro Nakanishi, it aired on 4/2/2026. This episode is rated 0.5 points higher than the second-best, "Locksmith".