Arknights: Hidden from the World

“I have a hundred rules as a mercenary, but only one personal creed: I have to stay alive before I can reject everything else.”

Inlet put away the katana he had been gripping tightly and looked at the enemy corpses strewn across the ground, all lying motionless.

(No System. This is more or less a prequel about a mercenary, and I'm filling in some gaps from my last book.)