Kilik, also known as Kiriku, was once the Gem King of the first Sleeping Forest. He is a gravity child, alongside his twin sister Simca and his childhood friend Sora. Among the first generation, he is considered the most talented. While part of Sleeping Forest, he develops feelings for Rika. Kilik eventually discovers Sora's malevolent intentions and rebels against him, joining other gravity children in this fight. He defeats Sora, steals the Wind Regalia, but later loses his own regalia to Nike.
Kilik evaluates people using a one hundred point system with random variables. When Sora reemerges in the AT world, Kilik begins training under extreme pressure to prepare for their confrontation. He follows the Gaia Road, which allows him to memorize and engrave any riding script from a rider, regardless of its speed, height, or complexity. Currently, he is training to become as hard as diamond.
