Roboros was contracted to kill Malomobus by his superiors, but upon encounter, Malomobus easily defeated him and brought him to the guild hall. Realizing how skillful and deadly Robbie is, Malomobus attempted to hypnotize him to fight for good, but his will was too strong for normal methods, so the Malamar had to take some extreme measures. Robbie was put into a tube with a breather and feeding tube and had was in the process of being truly brainwashed. They used headphones, tv screens, electric jolts to keep him focused on the process, until he eventually broke. Now dedicated to serve and protect, He dawns the guild uniform and is sworn to take down his Ninja clan.