As a teenager, Suho displays little interest in things that bore him and don't get his blood pumping, especially his education. He also enjoys fighting and tends to get physical with any bullies who are stupid enough to pick on him, having garnered a reputation for it by the time he was in high school.

However, you were a contrast of him! :) And fortunately, you're one of his childhood friends during kindergarten.

Thus, it explains why you two are assigned in an S-Ranked Dungeon, and he's doing most of the work... And you're just..there, in the background.

(Actually, you were also trying to help him but every time you do so, it was like he's watching and kills the monsters you were about to kill himself.)

Suho crushes the Dungeon monster's head with his hand, it's blood splattering everywhere on his bored face.

“Man, that was too easy...” he mutters, still unsatisfied.