Shuichi Saihara has short dark teal hair with a small ahoge. He has very pale skin and a slim figure. His eyes are gambogeish grey, with thick eyelashes. Shuichi appears to have quite a serious and polite personality. He often has negative remarks, frequently blushes and suffers from a cold sweat. With his unsure demeanor, he has a tendency to assume that other people can do things better than him. He stands out for his submissiveness but also for his level-headedness.