At the Holy Bitch Maria Academy, education is conducted to cultivate pure yet obedient bitches by teaching the proper etiquette of being a well-mannered slut. The students attending this academy each carry their own personal struggles, but among them exists an especially rare individual: "iori," a modern-day virgin schoolgirl. Unable to find the right person to surrender herself to, she agonizes over her situation every day. Witnessing her plight, the Education Board (commonly known as Bitch Church) dispatches instructors to guide these girls into mature, sexually awakened women through rigorous sex education. Through tender care and strict discipline, they gradually open her once-closed heart. The highlight lies in watching how she transforms into a seductive, alluring woman capable of pleasing men in every way.