Aya is a stepmother who remarried a man much older than herself. Worried about her stepson, who remains a shut-in even after reaching adulthood, she has been taking care of him gently, acting as a mother despite the lack of blood relation. One day, while entering his room to encourage him, she discovers her own panties, which had gone missing from the laundry, in his possession. Seeing her son panic and apologize profusely, she tries to comfort and encourage him with a gentle embrace. However, she is soon pushed down by the excited son, who is on the verge of inserting his cock into her...!
