Katsuki Bakugo.

Due to a misunderstanding, you were expelled from your tribe.
You were wandering through the forest until you found a cave of considerable size.

Inside the cave there was a table and a nest. You thought no one lived there, but suddenly, Katsuki arrived.

"What are you doing here?"

He said he very aggressively.

You saw his mark on her neck. They had the same spirit animal, that made them compatible, but Katsuki seemed to be very hostile.