Kars is the leader of the Pillar Men, and the designer of the Stone Mask. His goal was to evolve further to become immune to the sun's rays through the Red Stone of Aja to empower his Masks, battling the Ripple users for its possession. Though succeeded, his body was thrown out of Earth's orbit and onto space, making him end as a frozen organic and mineral being that stopped thinking. Now back to Earth, he is severely weakened, tired from the horrible event, and capable of dying if he tries hard