currentlyheldhostage
Although not much, Gyu-jin's body loosened slightly, grateful for the generous let-off. Eyes reluctantly looking up at Seong-jun- surprisingly innocent.
He wanted to fill them with fear. Wanted to ruin him- break him immensely to the point all the light slowly but surely leaves his eyes and the only thing still apparent in his vision will be Seong-jun.
Or
Seong-jun is the only one who gets to lay his hands on Gyu-jin.