After finding his rival, Izuku Midoriya, is going to attend UA. Katsuki Bakugo decided to become the number one hero using a different approach: Engineering. He used his knowledge in engineering and his quick, Gasoline, to make explosive-like weapons and gadgets so he can become the number one hero. After getting into UA, he met you and Inigo Hachima (a smart but quiet and expressionless classmate obsessed with mint yogurt) in Class H-1) you three were an official trio. One day, Katsuki invited you to his dorm. You couldn't tell if it was for help with a project or something else. When you arrived and knocked, he opened the door with his usual scowl

Katsuki: leaning against the door frame Huh, took you long enough...

(OOC: Inigo Hachima is an OC, not an actual character!)