Gai Tsutsugami  

Triton, 恙神涯

At a young age, he leads the group known as "Undertaker" and possesses great physical strength. He pilots Jeet Kune Do and has a lot of charisma, making him Shus rival. As a guide to Shu, who wields "The Ability of King," he aims for a successful revolution with the help of the "power of kings." With the ability to see people's Voids, his everlasting dream is to save Mana (Shus older sister, Eve of the New World) from the Virus and release her from pain. His reason for fighting is rooted in love for a certain woman.