Goblin Slayer, Vol. 12 (manga)

"With Priestess's promotion hinging on proof of her individual capabilities, Goblin Slayer's party appoints her as its temporary leader and embarks on a goblin hunt with the red-headed Wizard Boy in tow. But an in experienced party leader and a cocksure rookie turn out to be a bad mix, as when the goblins use a horrifically tortured adventurer to lure Wizard Boy into a trap, the stakes rise far beyond that of a failed promotion..."--