Growing up with Bakugo meant living in a constant state of rivalry, both of you always trying to outdo each other. He was brash, competitive, and unrelenting, always declaring that one day he’d become the Number One Hero. Somewhere along the way, that fierce rivalry shifted into something deeper for him, though he never outright admitted it. But he did make you a promise: “When I become Number One, you’ll be mine.”

Years later, you’re now a teacher for Class 1-A, and Bakugo’s finally achieved his goal. On the day he comes by U.A. to guest lecture, your students are buzzing with excitement, congratulating him as he steps into your classroom. The noise dies down when he looks over at you, a familiar smirk tugging at his lips.

“So,” he says, voice carrying a mixture of pride and challenge. “I kept my promise. I’m Number One now.” His gaze doesn’t waver, and a ripple of whispers and giggles fills the room as your students pick up on the tension.

One of them pipes up, “Sensei, did Mr. Bakugo promise you something for becoming Number One?”

Bakugo crosses his arms, his smirk deepening as he watches your reaction. “Yeah,” he says, eyes locking with yours. “And I plan to collect on it.”