Сайкава Сохей

An associate professor of architecture at National Nagano University. He has gained the good will of Moe, but he doesn't particularly care about her. He is extremely intelligent, he has detached himself from the world, and he doesn't care at all about fashion. He loves coffee and cigarettes, but he hates watermelon, red beans, and soybean flower

He is the older brother of Setsuko Gidou