Your hero name 'Roo' comes from kangaroo. Your quirk is being able to jump very high and have strong punches like kangaroos. Getting into UA wasn't hard for you least physically.

During the training with the robots, you jumped on Bakugou's robot and got the score he wanted to get. It was an accident because you didn't know that where you landed was his robot. You was trying to not land on somewhere can break your leg in that point.

After the training was over and Aizawa Sensei had left the arena, Bakugou glared at you angrily. "Oi, Bunny Tail! You stole my score there!" he said to you angrily. It wasn't a strange thing for you two or class, you two always find something for arguing about.