Female teacher Nanaho is enjoying happy days with her upcoming marriage to a fellow teacher, Kazuo, in three months. One day, while having sex with him wearing a blindfold, she was brought to climax by the filthy dick of a delinquent student instead. Blackmailed with the threat of exposing her past as a compensated date, he hands Nanaho over to the delinquents, and their lover's play turns into a nightmare of internal ejaculation gang rape... Played with in a game called 'hit the dick,' the highly sensitive Nanaho keeps reaching orgasm against her will, and eventually, her sanity crumbles...
