The Chieri which lives in Taichi and two people of the son, a small wooden apartment after being divorced. Lived a life happy enough although being poor, but the Chieri accepted a proposal from Tenchou, Tabuchi of the supermarket. However, Taichi was not able to allow for mother to have it stolen by another person. Taichi who came home from such an arrowhead, a byte watches SEX of mother and Tabuchi at home, and will not do it…. "The mother hands it to nobody"! !And Taichi coveted the body of mother within striking distance of Tabuchi….