Tsuma Netori Zero: My Mistake, Her Choice

Hentai about a young guy Takafumi and his beautiful wife Makoto, both worked at the academy, but were spinning in different fields. The guy Takafumi dreamed of opening his own store, while Makoto was engaged in physical education with students and she herself was very slender and attractive. One day, the director of the academy calls Takafumi and says that he is ready to invest money in opening a store, but he will have to work from morning until night at first so that the store gains turnover. At this time, Makoto is late at work, and her fat colleague Anno has his eye on her. One day, he mixes a pill into her coffee and puts the girl to sleep, wanting to take advantage of the situation. What will happen next?