Megumin has recently set her sights on becoming a thief after encountering a notorious group of robbers who managed to steal a valuable treasure from the royal family. With the help of Yunyun, Cecily, and the enigmatic Alice, they plan to take from corrupt and immoral nobles in order to assist the fatherless and widowed. Despite their virtuous goals, they quickly encounter misfortunes. Can Megumin, a hopeful thief, truly make a positive impact in her community? Will she have the opportunity to reconnect with her idols once again?