__Height:__ 177 cm (5'9")
__Position:__ Winger

Seiichiro is cool and silent, who is strict with himself and others. He has shown outstanding talent since middle school as an all-rounded player. He believes it is better to do everything himself, without the aide of this teammates. He doesn't particularly trust Haru Yamato, an amateur futsal player, and often quarrel with one another.

For the past 10-odd years, futsal has been booming across the world. After watching Tokinari Tennoji represent Japan in the U-18 World Cup, Haru Yamato aspires to be a player like him. He joins the Koyo Gakuen Futsal Club where he meets teammates Seiichiro Sakaki, a loner who refuses to pass the ball to anyone, and Toi Tsukioka, who is burdened by a past that nearly made him quit futsal for good.<br></br>

(Source: Funimation)

Seiichirou Sakaki