Konosuba by Natsume Akatsuki
The right magic words can stir a person's soul. For Megumin, those words are vigilante justice. Join everyone's favorite one-trick wizard, as well as Iris the Headstrong, Cecily the Problematic, and Yunyun...as they get a taste of the righteous bandit lifestyle! For the sake of justice, there's no line I won't cross! No criminal act I won't commit!