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, without being toxic, quickly earn his complete admiration, respect, and friendship. Eijiro is a muscular young man of average height and a rather impressive physique for his young age. He has red eyes pointed slightly inward just above his right eye. He also has pointy teeth and hair dyed a bright red.