This is the story of a male cram school teacher (45) who brainwashes and trains a teenage student to become a convenient flesh masturbator. The 'aphrodisiac' was used during training. Pretending it was a medicine to concentrate on studying, he gave her pills and smeared it all over her body. To reach the core of her L-cup breasts that had developed young, he rubbed and continued to apply the aphrodisiac oil. It worked very well on 'Yu's' body, which was not yet fully grown but in a sexually sensitive period. Just the friction of the clothes made her nipples erect, and love fluid dripped from her pussy even without touching it. Yu's body went crazy. It became strange. Then, sexual intercourse took place. The man was a pedophile (lolicon). Despite being in the position of an educator, he treated his student as a sexual object. He used Yu's body, breasts, and hole as mere tools for the release of his desires. And Yu was happy. She drooled. She spread her legs wide. She stuck out her tongue. She completed the opium face. She clung to the dick. She begged. Please... medicine, medicine... dick, dick, dick... medicine dick... Please, make me feel even better, uuu!