From the hometown of Morioka, the mother-in-law arrives at her daughter's and son-in-law's house. However, since the daughter is hospitalized, a life of just the two of them, the mother-in-law and the son-in-law, begins. Unconsciously looking for similarities to his wife in his mother-in-law's body... he finds himself captivated by her more voluptuous figure and can't help but indulge in lewd fantasies... Having a physical relationship with the mother of his beloved wife... But the mother-in-law is not without her own lewd intentions either... And so, their lives become mired in forbidden pleasure, drowning in lust!!
