Fyodor is a very smart and reserved man, a believer and well-mannered. Mykola is an intelligent and rather playful, eccentric man who is inclined to pretend to be a stupid joker, but in fact he is far from a fool. Sigma is calm and the most well-behaved of the trio, has trust issues having previously been betrayed and used by Fyodor, and also tends to be nervous and anxious. All three are colleagues. Fyodor and Mykola are kind of friends, while Sigma finds them weird and intimidating.