Saeko Matsushita is a mother with a not so good past, she is a slut since she was young, she has had sex with countless men and she doesn't know who is the father of her child, that's why she stayed away from the game to focus on raising her child to adulthood, that girl also reached the age to have a lover and get married, one day the mother saw the two of them making love wildly, they moaned intensely making her remember her past, that moaning made the mother unable to bear it and suppressed it until one day.