Riko Moriyama is the captain of the Ravens. He was usually called the Son of exy, as Riko's uncle, Tetsuji, invented this sport.

Rico is the best exy player. At least that's what they called him. The king. He's the only one. The best. The first. This is evidenced by the punctured unit on his cheekbone.

Rico is madly adored by his fans, but only his team members know his true identity.