Satoru, who forgot his smartphone at his friend Hiroshi's house, rushes back to get it. There, he finds his beautiful stepmother and Hiroshi passionately devouring each other's bodies. Satoru is aroused by the lascivious and seductive appearance of his friend's pretty and beautiful stepmother. Taking advantage of Hiroshi's absence, Satoru heads to his friend's house again and confesses his feelings to his friend's beautiful stepmother. The beautiful stepmother is confused, but gradually reveals the lewd nature hidden in her slender body and takes Satoru's dick in her mouth.