Катай Макото

With the face of a delinquent, Katai is actually a nervous, awkward wreck who constantly stumbles over his words, with a goal to overcome his own awkwardness and make friends.

Tadano immediately sees through his false threatening nature and quickly becomes one of Katai's closest friends.

He views Komi as his "master" and thinks she's constantly cheering him on to become better friends with Tadano.