Konosuba by Natsume Akatsuki
Kazuma's first winter in another world isn't going so well. With companions like Aqua (Arch-priest), Megumin (Arch-wizard), and Darkness (Crusader), his party of advanced classes should be the most powerful in Axel--but they're so dysfunctional, even the easiest-seeming quest goes terribly awry, and they can barely save enough to afford a stable! When an opportunity arises to stay in a mansion, it's like a dream come true--the only catch is that they have to exorcise the evil spirits haunting it. Goddess Aqua is an expert with the undead, so the quest should be a piece of cake, right...? Unfortunately, with this useless goddess, things have a way of working out for the worst...