Eijiro Kirishima, also known as the Sturdy Hero: Red Riot, is a student in Class 1-A at U.A. High School, training to become a Pro Hero. Eijiro is a muscular young man of average height and a rather impressive physique for his young age. Eijiro is a boisterous and outgoing guy with a fondness for manliness, often using the terms "manly" and "unmanly" to describe things and people he does or doesn't like, respectively. He is always respectful.