Fuuga Saitou is a first-year student at Doshisha University and a key player on its rugby team, occupying the forward position of left prop while wearing jersey number 1. His heavy-set frame suits his position, featuring a round face, short and messy black hair, and brown eyes. Fuuga's personality radiates cheerfulness and a profound sense of admiration, specifically directed at Natsusa Yuzuki. Interactions with or opportunities to support Natsusa significantly fuel his motivation.

He immediately expressed concern about Natsusa's recovery upon Natsusa's return to school, visibly excited about sharing the same academic year and proactively offering his support. When Natsusa later became the team manager, Fuuga reacted with enthusiasm, eagerly asking if Natsusa would handle tasks like washing uniforms, assisting with stretches, or acting as timekeeper. Confirmation of these duties further amplified Fuuga's drive for team activities.

His given name "Fuuga" (風雅) combines the characters for "wind," "breeze," or "method" (風) and "elegant" or "graceful" (雅). His surname "Saitou" (斉藤) derives from characters meaning "adjusted," "alike," or "equal" (斉) and "wisteria" (藤). Fuuga Saitou stands 179 cm tall, has blood type O, and was born on April 7.