Goblin Slayer, Vol. 13 (manga)

Goblin Slayer, still reeling from the discovery of his connection to Wizard Boy, suddenly gets asked to go drinking with Spearman and Heavy Warrior. As the three of them talk about all sorts of things, both trivial and deep, something bubbles up from the depths of Goblin Slayer's mind-his childhood dream of becoming an adventurer... But the past will have to wait-right now, there's a goblin horde attacking the training grounds!!?