The extraordinary daily life of ordinary good-for-nothing college student Luo Ben and his high school student sister Luo Xiaomiao. Because she discovered that her sister was actually the strongest witch who could freely travel through different worlds, she was forced to get involved in a series of wonderful "adventures?" Because he is the strongest, there is no problem, right? Why do I, the weakest, go first every time? A strange team composed of the strongest and the weakest from another world should be able to achieve great results, right?