My husband's stepchild is so incredibly incredible...

It's been a few months since I married a man with a stepchild. Although she is happy, she still hasn't gotten alongside her step-son Ippei, and Reina is having an awkward day. One day, he witnesses Ippei, who continues to masturbate day and night... As it turns out, he will help him release his sexual desire. This leads to her close relationship with him, and Reina feels happy to be called her mother. However, Ippei, who has a strong sex life, cannot stop ejaculating once or twice, and she asks her to help with the prevention of the virus many times...