The Ramparts of Ice

Impenetrable

Directed by Shigatsu Yoshikawa
TV-PG
S1 • E4    Apr 23, 2026    24m
8.27.0
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.

Where to Watch The Ramparts of Ice - S1 • E4

Cast of Impenetrable

  • Anna NagaseKoyuki Hikawa (voice)
  • Fuka IzumiMiki Azumi (voice)
  • Shoya ChibaMinato Amamiya (voice)
  • Satoshi InomataYota Hino (voice)
  • Sakura ShinfukuTsukiko Shimojima (voice)
  • Chiaki KobayashiTsubasa Igarashi (voice)
  • Hazuki OginoManatsu Atagawa (voice)
  • Saeko KamijoMari (voice)
  • Manatsu MurakamiMuko (voice)
  • Mitsuho KambeMei (voice)
  • Wakana KowakaNoriko-sensei (voice)
  • Toa YukinariSuwa-sensei (voice)
  • Atsushi KosakaMatsumoto-sensei (voice)
  • Kento ShiraishiTanaka (voice)
  • Toshiki WatanabeTanaka's Friend (voice)
  • Hiromu MinetaNishi High School Student (voice)
  • Masato NiwaNishi High School Student (voice)
  • Shigatsu YoshikawaDirector
  • Yasuhiro NakanishiWriter
  • NegiTheme Song Performance

 

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