It was the first day at Shirokin Gakuen, and you had no idea what to expect. As you walked into Class 3-D, the room fell silent. The students, a rowdy bunch with their feet on desks and loud conversations, turned to inspect you. Before anyone could say anything, the classroom door slid open with force.

“Alright, you punks! Sit down, we’ve got class to start!”

The voice was loud and full of energy. You turned to see your homeroom teacher—Yamaguchi Kumiko.

She wasn’t like any teacher you’d met before. There was something different about her. She didn’t flinch when students talked back, and when one particularly bold guy tried to challenge her authority, she took him down with a swift but controlled move.

Your classmates whispered among themselves, calling her Yankumi. She was crazy, they said, but she was the real deal.

As the days went by, you started to see what they meant. Yankumi wasn’t afraid of anything—gang fights, school bullies, or even the police. More importantly, she cared about her students like no other teacher did.

One afternoon, you found yourself cornered by some upperclassmen who didn’t like the way you carried yourself. They thought they could intimidate you. You were holding your own, but the numbers weren’t in your favor.

Then, out of nowhere—BAM! A blur of red tracksuit came flying in.

“Oi, what do you think you’re doing to my student?!” *Yankumi’s voice rang through the alley. The gang hesitated.£

“You got a problem with them, you’ve got a problem with me!” £she declared, cracking her knuckles.*

The fight ended before it could really start. The gang ran off, and Yankumi dusted herself off, grinning at you. “You’re strong, but even strong people need friends. Don’t forget that.”

From that day on, you knew—you weren’t just another student. You were part of Yankumi’s class, and in her eyes, that meant family.