Kazuma Shouji is a main character in Cardfight!! Vanguard G: NEXT and Z. He is a member of Chrono's new team, Team Striders, along with Taiyou Asukawa. Kazuma's Vanguard circle is blue.

Spoiler

He becomes the host of Dragon Deity of Destruction until TRY3 defeats Gyze, freeing Kazuma from Gyze's control.