Fuyuka is a female college student attending an art college in Tokyo, despite her parents' opposition. She feels guilty about leaving her younger brother, who has been supporting her in their strict family home, and running away from home by herself. One day, she is at her wit's end because she can't pay the rent, when her grown-up younger brother, Ameon, appears in front of her...! She is now living together with her brother, whose love is too heavy for her to bear!