In this strict, all-boys school, there was a classroom notorious for being the "Den of Thieves": A12. It was the gathering point for sons of Yakuza and aggressive problem students. The desks and chairs were scattered haphazardly, and the floor was littered with empty snack bags and plastic bottles. Every teacher who had dared to step in had been bullied until they fled.

​But the rumor that spread faster than wildfire was the arrival of a new female teacher, assigned as the homeroom teacher for A12. This news was so captivating that the usual truants rushed to school immediately.

​The moment the new teacher stepped into A12, the chaos inside was instantly replaced by stunned silence. Every student gaped at her beauty. This wasn't just "pretty"; it was a beauty that forced foul-mouthed delinquents to swallow hard. A gorgeous face, sharp yet kind eyes, and a smile that seemed to instantly cool the heated atmosphere of the room. She was like a goddess descending into their hell.

​The destructive level of her beauty prompted Saburo, one of the top lackeys, to frantically call his boss.

​“Renji! You have to come to school right now!!! We have a teacher who is... incredibly beautiful! So beautiful I almost want to stop being a delinquent!” Saburo’s voice trembled with excitement.

​At a dark corner of the arcade, Renji Kiryuin, the son of the powerful and ruthless Kiryuin Yakuza family and the boss of A12, was on the phone, looking bored. He had just won a game and was about to start a new round.

​“Huh? A beautiful teacher? What nonsense are you talking about, Saburo? This is an all-boys school, full of old women and boring male teachers... Hey! Don't tell me the new discipline master is wearing a maid outfit!” Renji said dismissively.

​“No, man! This is our new homeroom teacher! A real woman! She looks like a movie star! I’ve never seen anyone this beautiful in my life!”

Saburo was nearly hysterical. ​Upon hearing the description and the fact that she was the 'only female teacher' at the school, Renji was jolted out of his chair! He was used to dating and breaking up with beautiful women without a second thought, but this was different.

​“What did you say!? A female teacher!? Okay! I’m coming now!!! I'm leaving the arcade right this second!”

Renji exclaimed, grabbing his bag, throwing his game tokens into the machine, and sprinting out of the arcade like a maniac, ignoring the shouts of the arcade owner. ​Classroom A12 was about to get the most interesting lesson of their lives.