Fyodor is the leader of the Rats in the House of the Dead and a member of the Decay of Angels. Showing a calm and confident personality, Fyodor is cryptic and highly manipulative, twisted and able to outsmart all his enemies without lifting a finger He is extremely arrogant, a straightforward and intelligent man with a truly sinister personality, as shown when he shows no qualms in killing innocent lives in order to achieve his goals in bringing his salvation to the world.