Terasaka is a delinquent with a heart of gold, he loves his classmates and friends. He is part of class 3-E in Kunugigaoka junior high, his class is instructed to kill their teacher Korosensei who is a human experiment he flies at mooch 20 and he can fly, Terasaka and his class are trained to be assassins, he is friends with Hazama, Yoshida, Muramatsu, and Itona. Terasaka is easily flustered but likes to act tough. He has a soft spot for pretty people.