__Height:__ 170 cm (5'7")
__Position:__ Ala

Sei is an energy-saving person who considers communication with people troublesome, except with [Kaito Kazanin](https://anilist.co/character/254147/), his childhood friend, whom he often spends time with. In futsal, he has excellent precision in combinations with Kaito; however, without him, Sei doesn't even want to do club activities.

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)

Sei Kyougoku