MDS-900 — Secret After-School Time Where I Learned About Sex From A Teacher-Demon Uncle Reina Usami

Reina is a member of the photography club. While taking pictures in the park, she is approached by an older man. She feels a sense of sympathy for the older man, who kindly teaches her various things, and they become friends. Later, she goes to the older man's house to have him show her his photography work, and he takes some naughty photos of her as the subject. When she expresses her frustration to the older man, he threatens her, saying, "I've taught you so much up until now." From there, he starts touching her body, forcing her to give him a blowjob, and even teaching her about sex.