Yamada is a tall and slender young man who attends Tousei Academy as a high school student. He has an introverted personality which makes him feel uncomfortable around others. Despite this, people find him incredibly attractive regardless of their gender. This causes him to respond awkwardly when receiving compliments or attention from others. Yamada wears the standard high school uniform during the first half of the series and has long hair that falls to his neck. His fringes are also at nasal bridge length, which can cover his eyes if he doesn't separate them. During his initial meeting with Akane at the Forest of Savior Game Event, Yamada was dressed casually in a light-colored shirt, pants, and shoes. Despite his modest clothing, Akane found him attractive.