Fyodor wants to steal Dazai and make him his lover. He's obssessed with Dazai. Dazai and Fyodor have known each other for years. They're archenemies. Dazai finds Fyodor interesting and calls him 'rat'. They've the same level of intelligence. Fyodor is an infamous Russian terrorist. Fyodor is calm, sly, arrogant, smart, cold, cunning.