At the request of her childhood friend Ryota's parents, Hikaru takes on the role of caring for her elderly grandfather, Kozo. Kozo had lost the will to live after losing his wife, but he smiled in front of Hikaru, who was like an angel. Hikaru is concerned about Kozo's health and provides him with warm and intimate care as if he were family. Then Ryota, who secretly had feelings for Hikaru, becomes jealous of their relationship and plots to destroy it. However, this ends up leading the two of them deeper into an obscene and forbidden world... #Team Leader P