Kyouko Hori is a responsible and popular student at school, but at home, she takes care of her younger brother due to her parents’ absence. Her relationship with Izumi Miyamura brings out both her affectionate and fiery sides, as she deeply values their bond. However, as Miyamura's appearance and confidence change, drawing more attention from girls, she begins to feel insecure. This vulnerability contrasts with her usual strong personality, revealing her fear of losing the closeness they share.