the spin-off is set in an RPG world where Class 3-E attempt to get stronger but lack the necessary skills to fight. Thus, the ''Demon King'' (koro-sensei ) decides to train them so the class can eventually surpass and kill him with his speed of '99999'.
Karma is one of the Three Heroes (him, Ritsu and Itona). He's shown to be skilled with swords, traps and magic. He is considerably stronger than the majority of Class E.His bug's only usage gets him hit in the head, dropped into a pitfall trap.