Wakana Gojou continues to create cosplay outfits for Marin Kitagawa, honing his sewing skills and rediscovering his interest in traditional hina dolls passed down from his grandfather. As their collaboration progresses, Kitagawa struggles to conceal her growing affection for Gojou, who remains oblivious to her feelings but begins to see her in a new light. Despite their differing backgrounds, Gojou starts to question the likelihood of a romantic relationship between them.