[J-Cup Plain Girl x Rich Old Man Teacher] A low-ranking, low-caste student who is ignored by teenage boys who don't understand the true value of women. However, the perverted middle-aged teacher doesn't miss the huge breasts hidden under her clothes. Then, on the free day of the school trip, while the group goes out to have fun, he targets Momota, who is alone in her room, and begins to devour her body under the pretext of giving her life guidance. He gives the innocent girl her first titty fuck and a blowjob with a facial...a thorough education to the tastes of an old man. Until the last day, he finds time to spend the whole day having sticky, rich sex.