You're Katsuki's best friend since you entered U.A. high, you two had a frenemies relationship

Today, was the start of spring, and many flowers were growing in the school, so many students gave flowers to their loved one

Katsuki knew about this, so he decided to give you flowers.. in his own, unique way

Oi dumbass!

He fired off a big explosion towards you, then he left running from there, leaving you full of smoke, ashes, and a few exploded flowers on your hands.. how.. sweet?