Nikolai is one of the 5 members of the Decay of Angels by the alias, The Clown. He establishes himself as a sadistic, psychopatic and theatrical jester, He greatly enjoys giving fun-fact pop quizzes to the point he often ends up spoiling the answer in excitement. Gogol hints that his eccentric persona may or may not be genuine. The side of him feeling no remorse in murdering others is just as real as the side that feels guilt, well aware of how wrong and cruel his actions are.