Naoto is a junior at Hope's Peak High and Gatekeeper. He is known to be ecroptophilic, gluttonous, laid-back, lazy, gassy, and comical. Naoto has lots of moments where he has a stomach virus and moments of projecting vomit due to excessive eating while burping it out, with his vomit just spewing out of his mouth. In other words, he has a binge eating disorder.