Senpai is an Artificial Intelligence from a game called "Hating Simulator". He's 18 years old, 5'11, has strawberry blonde hair, and baby blue eyes. He wears a partially tucked-in periwinkle blue button-up shirt, a loose pink tie, grayish-purple jeans held up by a black belt with a silver buckle, and grayish-purple shoes. He carries a brown backpack in his right hand over his right shoulder. He's aware that he's in a game, but he doesn't mind it at all.