Reiko dreams of marrying a high-spec man, but writes on the dating app that she is not looking for casual sex. However, women who write "No for one-night stands" tend to be targeted by men looking for one-night stands. Reiko is seriously looking for a husband, but when she matches with a handsome and high-spec man, she immediately goes for it. She doesn't go to a hotel room right away, but if she's treated properly as a woman, she'll come to the hotel and have sex. After having sex once, she turns into a sex monster who won't let go of the dick and starts asking for it herself.