Hinata Koizumi is the female manager of a baseball club. She lives in an environment full of men, especially there is a teacher who is quite strict. Hinata made a big mistake and was at risk of losing her job. The counselor called her to the office and expressed his desire to fire her. Hinata of course begged and he exchanged requests for Hinata to serve him sexually, he wanted to educate her about sex. And with the fear of losing her job, Hinata complied with all the demands of this strict teacher.