While buying food from a nearby convenience store late at night, ShÅtarÅ spots a 4-year-old girl named Ii-chan wandering around, covered in blood. After calling the police, ShÅtarÅ takes her to Sakurako, who deduces that she was abused and had a broken arm once. ShÅtarÅ gets closer to the location when his classmate Yuriko, who babysat for her, tells him where to find the house. ShÅtarÅ and Sakurako enter the house to find the dead body of the girl's mother, and deduce that someone she knew killed her, but are unsure why she let herself be stabbed in the kitchen. Sakurako finds a crawlspace underneath the mother's body, where the girl's baby brother lies unconscious. Sakurako performs CPR on the baby when the attacker, the father of the family, comes back to the house. After stabbing the policeman with a knife, he enters the house where ShÅtarÅ manages to subdue him, but Sakurako screams out the name "Soutarou" after being afraid of his safety. As the police take the father into custody and the baby returns to consciousness, ShÅtarÅ wonders if Sakurako cared about him or someone else.