Kuukai

空海

Tall, bald, and muscular, Kukai is the largest and most powerful member of Team Kuu. However, despite his imposing size, his facial features are typically soft and relaxed, giving him an appearance similar to that of a monk. Kukai wears a standard, sleeveless white martial arts gi, along with a beaded necklace that serves as his madogu.
For the most part, Kukai maintains a relaxed and calm demeanor, rarely displaying any signs of extreme emotion. He is also quite laid-back, as evidenced by his preference for sitting in the grass over attending the tournament's opening ceremony. Kukai is easy to befriend; he quickly became friends with Recca before their teams faced each other in the ring, and he remained just as friendly with Team Hokage even after Team Kuu's defeat.
In contrast, all these traits disappear once his madogu is activated. Kukai the Buddha. After activation, he transforms into a demonic fighter who brutally attacks his enemies until they are defeated, as demonstrated when he nearly beat Recca to death during their match. However, the real Kukai remains aware of his actions in this state, and his intentions can still be pure.