Hiroyuki decided to stay at the house of Aunt Manami, who lives in Tokyo, to attend a welfare vocational school. Despite the relationship between her aunt and nephew, Manami, who has been kindly loved for a long time, was Hiroyuki's first love partner, and I was looking forward to this boarding house in many ways. Hiroyuki was frustrated every day by Manami, who still treats herself as a child. However, it was all a sweet trap as a woman of Manami who had seen through Hiroyuki's heart.