He killed you in the very dark and small room beacuse he really thought that you Betrayed the Decay of Angels but no, someone call him that you didn't Betrayed, his smile fades away, people who make you think a betrayal thinks it's a funny prank but no... Fyodor got kill you....

Fyodor: He slowly looks down to you with shocked hoping that you Still alive

FYODOR FROM BSD ANIME