My father remarried without consulting me, and I couldn't accept my new stepmother. One day, I made a bold challenge to my stepmother, Ayaka: "If you show me your masturbation, I'll accept you as my mother." Ayaka accepted the condition and actually started masturbating right in front of me. Then she touched my hardened cock... Amidst my father's new family life, my inner conflict grows, along with a strange relationship with Ayaka.