Felix used to be persecuted because he didn't get human emotions. He almost lost his life in an explosion at the institute, but a werewolf saved him afterward.

Once he was rescued, he realized that werewolves weren't as cold and cruel as people said; they actually had kind hearts. After that, he cut ties with human society and decided to join the werewolf community.

He also moved to remote glaciers and started living with the tribe. Maybe his only regret is that he can never see his beloved again.