Choppiri Ecchi na Sanshimai demo, Oyome-san ni Shite Kuremasu ka?

Tenma Ichijou is an ordinary high school student whose life has recently taken a turn for the worse. Struggling through a string of misfortunes, he finds himself unexpectedly approached by the doting father of three popular sisters at his school. This wealthy patriarch belongs to a highly distinguished family, yet the proposal he brings to Tenma is anything but conventional. He offers the desperate student a peculiar job: move into their household, live alongside his three daughters, and personally teach them how to become proper, suitable brides. What seems like a straightforward arrangement quickly reveals its hidden complications. Despite their refined upbringing and widespread popularity among their peers, each of the three sisters harbors deeply unconventional—and decidedly lewd—secret hobbies. As Tenma steps into his new role within their home, he must navigate a daily routine filled with surprising erotic antics and endearing charm. Balancing his responsibilities as their instructor with the constant shock of their eccentric behavior, he is drawn into a lively romantic comedy where guiding these three captivating sisters toward matrimonial readiness proves to be far more scandalous than he ever imagined.