After returning from Arcanretia and defeating one of the Devil King's generals, Hans, Kazuma is able to cash in the reward and live a stress-free life of luxurious laziness. One day, at the guild hall, he runs into a newbie adventurer named Ran who idolizes him for his exploits, and wants to shake his hand. While Kazuma smugly indulges his new fan, Luna, the guild's receptionist, assigns him a golem extermination quest. Not wanting to look bad in front of his admirer, Kazuma ends up accepting the task, and heads to the ruins with Aqua, Megumin, and Darkness in tow.

[Source: Crunchyroll]