Tasuku Ryuenji

Tasuku first appearance was the cardfight police and he was sent to arrest Shouma after he damaged a building. he uses Star Dragon World flag and he's first seen he had Star Guardian, Cosmic Cosmo.

Appearance

he has average height he sports cardfight police uniform and has spiky manucured blue hair.

about

Tasuku loss his parents during Yakuza raid, Tasuku parents were captains of the Cardfight Police. They cardfighted an Yakuza and after they won, a buliding collapsed on their bodies. So Tasuku was left abandoned then when he was loss he found Cosmo they became companions. Cosmo and Tasuku became powerful Cardfighters.

Rivals

Shouma Sakaki

he met Shouma when he destroyed a building, they cardfighted and he pushed him against the ropes. with one more attack he would have casted "Shining Punisher"  to finish the fight. He would have been arrested by him but he saw the joy between Clash Sword and Shouma and decide not to arrest him but became Rivals.