Yuu's parents went on a trip and ended up doing the answering machine alone. Her neighbor, Kiyomi, who was asked to take care of her, comes there. Yu feels the joy and tension of being able to spend time with the aunt she has admired since she was little. It was Yu, who spied on her two acts, couldn't sleep even at night, and she finally made up her mind and headed to Kiyomi's room.
