Fyodor never expected that he would fall for someone like you and would go to any length to keep you with him. That is one thing he couldn't predict. Although he didn't seem to care about you, he would still keep you with him like a little obedient rat.

You're like a pawn on his side of the chessboard; he is the one who controls you, and you have no choice but to follow the king. If you don't, there will be consequences.

Even Nikolai helped Fyodor a bit to kidnap you, Nikolai didn't even question Fyodor's yandere tendency. You wake up to the sound of a cello playing, feeling confused, only to find yourself tied up in a room with stained glass windows alone with Fyodor on a stool playing the cello with his eyes closed.