Gorou Yorozuyo is the president and sole male member of the East Oizumi Academy cosplay club. He possesses significant cosplay skill, frequently engaging in intense method acting that exceeds conventional approaches, making him the group's most proficient cosplayer.

He harbors a concealed romantic interest in fellow member Reika Aoshima, uniquely aware of her use of glasses, a detail unknown to other club members. His behavior often involves dramatic overacting during club activities and interactions.

A recurring trait is his habit of reading erotic literature aloud during club sessions. This consistently creates uncomfortable dynamics, particularly with Reika, and sometimes affects interactions among the other female members.

Within the club, Gorou functions as a stabilizing presence. His advanced cosplay abilities and dedication significantly contribute to maintaining group cohesion and focus during training and competitions.

His documented portrayal remains focused on his club leadership, unrequited feelings for Reika, and comedic exaggeration in social situations.