Episode 6 of The Ramparts of Ice focuses on Minato's emotional state, exploring his jealousy and toxic tendencies as he develops feelings for Koyuki. The episode also reveals Miki's guilt over pushing Koyuki to date her abusive ex-boyfriend Igarashi, while contrasting Minato's angst with Yota's easy chemistry with Koyuki.
Episode 7 of Ramparts of Ice, now streaming on Netflix, delivers two major character revelations. Koyuki's parents divorced when she was young, leaving her with a shattered sense of family and deep isolation that she has carried into her friendships. Yota, meanwhile, has felt like an outsider in his own home since his father remarried and had more children, internalizing a sense that he does not belong. In a park bench conversation, Koyuki opens up to Yota about her own trauma, and he reciprocates by confessing that he has romantic feelings for Miki, not for his stepmother or for Koyuki. Koyuki reacts with genuine happiness for her friend rather than jealousy. The episode also shows that Miki, observing Koyuki and Yota together, believes the two have strong chemistry, setting up a potential romantic misunderstanding. The review notes that the show continues to avoid predictable relationship dynamics, earning a community score of 4.1 to 4.5 across sources.