He is Touko Zaizen's father and dark blue speedo swimsuit.
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Touko Zaizen and Sousuke Zaizen's Inflate
Touko Zaizen and Sousuke Zaizen
Trivia[]
In Inazuma Eleven Sousuke Zaizen wearing dark blue speedo swimsuit, blow into thumb inflate like a balloon of body. When deflate like a balloon of body and normal size.