After her mother remarries and moves into the new father's mansion, Himari feels uncomfortable. One day, when her mother is away on a business trip for two days, she decides to go to her boyfriend's place. Her stepfather agreed to this, but ultimately, she missed her boyfriend and returned home in the middle of the night. To vent stress, I started drinking with my father-in-law, but suddenly felt sleepy and lost consciousness. When I woke up next, Himari's limbs were tied to the bed...
