Shinichirou Yamamoto

Shinichirou Yamamoto is a first-year mechanical engineering student at Izu University and a classmate of the protagonist Kitagawa Iori. He harbors an unusually intense obsession with losing his virginity and takes persistent action toward that goal, yet his twisted character and biased views toward women cause every romantic attempt to end in failure. Known as the quintessential virgin among his peers, he frequently joins his close friends in envying—and even sabotaging—other people's relationships, making him an indispensable source of tragicomic relief throughout the series.