Riko, a caregiver who came to a certain house for nursing care. The stubborn erotic old man Kurio, who was in charge of Riko, was a domineering man who had driven the caregiver who was in charge before Riko came to dismiss. Riko, who was angry at Kurio who fired her beloved senior, began to train Kurio like a queen. And, with Riko's training, there is a gradual change in the chestnuts ...