Yuuri lives with her husband and her father-in-law who needs nursing care. Yuuri, who was in financial trouble because of her father-in-law's time, actually earned her income from erotic chat. However, her husband, who suspects her daughter-in-law's behavior, asks her father-in-law to investigate. And her father-in-law puts on a mask and becomes a "Tenguo", not only exposing her daughter-in-law's unfaithfulness, but also making her look after her under the guise of taking care of her.
