Mother, the Mariko knows the existence of her, the Izumi to see a mobile phone of son, Naoto of the university student. As Naoto who was a spoilt child grew up all the time, left mother. The love of the Mariko begins to be gradually warped in the Koto which is jealous of relations of Naoto and the Izumi, and come to demand Naoto as a man not a son. And an action of the Mariko changes into an abnormal thing when passion of the So popped….