Yumi married a man with a son. Her stepson, Ryota, had fallen in love with her from the moment he first saw her. After starting to see Yumi as a woman, Ryota began to distance himself from her. Yumi, wanting to deepen their relationship, took even better care of him… The virgin Ryota couldn't resist Yumi's allure and ended up masturbating by licking her underwear. Yumi watched this scene in shock yet excitement. Then, Yumi whispered softly to Ryota, "Do you want to know about adult kisses?"
