JUY-398 The stepmother and son Yukoko Shiraki accidentally drank a super potent aphrodisiac that the husband secretly obtained to remedy their sexless situation, mistaking it for stomach medicine.

Yuko, who remarried half a year ago, was troubled by her relationship with her adolescent son-in-law. Without knowing such a thing, her husband was dissatisfied with the lack of night activities and planned to get her super strong aphrodisiac and make her drink it to Yuko. However, Yuko, who got sick in the afternoon without her husband, might have mistaken it for her stomach medicine and drank her aphrodisiac. Yuko desperately tries to do housework even though she feels uncomfortable with her hot body, but she can't resist the effect of a super-strong aphrodisiac that sensitizes any tuna woman.