Ejiri Takekazu attends Yamanami High School. He sports a wild maroon undercut hairstyle, medium skin tone, and burnt-orange eyes. He wears his uniform loosely, reflecting a casual approach.

Personality-wise, Ejiri is noisy, hot-blooded, and confrontational. He exhibits confidence, a fiery temperament, and a readiness to engage in physical altercations, rarely backing down from fights. His demeanor is often violent and angry.

Before Yamanami High, Ejiri belonged to the baseball club during junior high school. At Yamanami, he joined the water polo club, specifically requesting the goalkeeper position when the team was recruiting following Minato Kiyomizu's return to the sport.