That guy is garbage. Francine, The Automata, using Masaru. He really needs to die. Aw, man, he is dead! Poor Dean is just another of his many victims. And, there's no way to free his body if he's alive. Hopefully, they'll realize Masaru has his memories but isn't Dean. Actually, what happened to Masaru is pretty much what happens to all Shirogane (get memories but keep their personality).