[Reducing Mosaic]JUR-703 "Your stepmom will teach you an adult's kiss..." The seductive stepmother, Hojo Maki, takes the lips and virginity of her inexperienced stepson.

Mahi decided to marry a man with a son. Her husband's stepson, Masashi, couldn't accept Mahi as his mother and kept a cold distance even when living together. Mahi, who wanted to deepen her relationship with Masashi, stayed by his side and took care of him on the day he was bedridden with a high fever. Masashi gradually began to open up his heart as he noticed Mahi's kindness. One night, Mahi was asked for a kiss by Masashi because his previous mother had done it too. When Masashi tried to tangle his tongue, Mahi scolded him, 'No kissing like adults…'