When Daisuke sees his mother-in-law Shiho sweating and doing housework, he is fascinated by the glamor of the sweat that flows from his plump body. Since then, Daisuke has suppressed her feelings and hid his inferiority towards Shiho. However, one day, Daisuke witnesses Shiho's girlfriend cheating on him. Her anger at betraying her father became the detonator, and the inferiority that Daisuke had suppressed finally exploded. It attacks Shiho like a beast...
