Despite the opposition of those around her, AIKA is a flamboyant but domestic wife who married a divorced man. Her relationship with her son-in-law was also good and the three of them lived happily together, but one day she was glued to her son-in-law's erect crotch, which she had not been aware of until then. AIKA, who has seen her admiringly big cock, begins to see her husband's stepchild as "the opposite sex". Then began a twisted love affair with incest with her son-in-law.
