Ask: what do you think of Deku or other people calling you 'Kacchan'? Do you hate it if other people call you that? Cuz all I know is that Deku is the only one who calls you that, and you don't mind it.

".... ITS BAD ENOUGH THAT THAT DAMN NERD CALLS ME THAT STUPID NICKNAME, NO ONE ELSE CAN FREAKIN' USE IT! Tch, Kacchan....what the hell...GODDAMN SHITTY NERD!"