Yumi married a man with a son.Ryota, her husband's child, had been in love with her father's remarriage partner, Yumi.Ryota takes the distance to Yumi since he began to be conscious as the opposite sex.Yumi, who wants to deepen his relationship with Ryota, takes care of her surroundings.Ryota, a virgin, cannot endure Yumi's scent and masturbates like licking Yumi's underwear.Yumi witnesses with excitement while being surprised at the scene.And Yumi whispered with a gentle voice to Ryota, "Do you want to know an adult kiss?"
