Goblin Slayer Side Story: Year One, Vol. 3 (manga)

For the sake of his fallen party member, Rookie Warrior puts his life on the line in the fierce battle against the Rock Eater. Meanwhile, as the rain pours down on a small village in the foothills, thunder and pale-blue light rend the evening sky to shreds, and a certain young adventurer kills goblins one by one. Who knows what perils lie in wait for him there...