A younger brother and a bride (Rio) of the So who went home in the parents' house where mother and older brother and his wife of dementia lived in by a Buddhist memorial service. The sister-in-law was tired from care of mother a half year ago, and left, and the older brother had a desire. On the other hand, the younger brother and his wife sent the plain sex life of a close thing, and the Rio did an act to sometimes cheer oneself up. A younger brother returns to Tokyo by work in such a case. One will win through up to the Rio to take care of mother.