Classic is tired of all the resets. When he frustrates his brother, and can't even handle himself anymore, he leaves in order to get away from everyone. He is fading, from so many resets, and if he dies when he leaves he will stay dead. In order to keep everyone else from dying if he does, he gives half of his 1/4 of his soul to Killer, Horror, and Dust. Then, he goes missing. He just up and leaves unable to handle himself, and the world around him. In a matter of desperation to get their friend back, the bad Sanses go on long, and dangerous journey to try and talk some sense into him.