Rai Shinomiya is a member of the Manganji Dreams and a twin brother of Rin Shinomiya. He is known for defeating Jirou Oriza in two consecutive rounds in the Asia Cup finals. Rai's Crush Gear is Sougetsu.
Rai is shown to have short light blond hair and blue eyes. Similar to his twin sister, his outfit consists of a red trenchcoat, a white shirt with a matching pair of pants and a black belt. Rai also wears a pair of sunglasses that has a cat eye design on his right.
- Rai's gender is changed to female in the Arabic and Persian dub of the anime.
- His fate was unknown in the World Cup finals whether he was defeated or forfeited.