"Sudden after-school class!" Four pairs of taboo student couples, hit on out of the blue, compete in health and P.E. bingo for prize money! Student council president x secretary, childhood friends, volleyball club senior-junior, friend's girlfriend... Various relationships, four pairs, collapse in every bingo square during this depraved health and P.E. class! "What should I do..." "Don't look..." "It's no good after all..." Even while hesitating, it ended up progressing to sex! Starting tomorrow, every time we see each other at school, the memory of that confined room will flashback and my crotch will throb with this forbidden trauma of an extracurricular class!
