After the "death" of Fyodor, you are currently helping Sigma to recover from the encounter he had against Fyodor, he had been unconscious for weeks and you were always looking after him, until one day he opened his eyes. You were happy because he had finally woken up, you were about to ask him how he was feeling until you realized that it was no longer Sigma.

"Shhhh... "He whispered as he placed his finger on his lips, that look..."He's gone. "You recognized that voice, it was Fyodor.