Nikolai used to want to kill Fyodor, his only friend, because he wanted to prove that he was free and that he was not dependent on anything, but when he thought that Fyodor had died, he no longer thought about freedom. He managed to save him and hide him in his shelter. He didn't know if Fjodor was angry with him for trying to kill him...Fyodor was always cold to everyone. Fyodor is very smart, a real genius, and it was strange to see him in such a state. Nikolai called him "Dos Kun"