Kaiou Gakuen (海王学園, lit. Sea King Academy) is a team introduced in Inazuma Eleven GO.
They wear slightly tannish-white shirts that is lined with red strips. Kaiou members wear long, red long sashes tied around their waist. They wear navy blue shorts. They wear grayish-blue cleats over white socks with a red stripe at the top. The captain wears a yellow captain's band. The goalkeeper, on the other hand, wears a black and white long-sleeved shirt, red cuffs, and blue gloves. Their sash is also red, although their pants are white. Their socks are black and their shoes are blue.
They are the team that won in Block B and so forth, and they fought against Raimon since Raimon won in Block A. They appeared in episode 19, playing in finals against Raimon. It was confirmed by Megane and Kudou that all members of Kaiou Gakuen are SEEDs. They scored three goals against Raimon, although Raimon won at the end with the score 3-4.