How Did I End Up As the Villain's Lackey?!

Zhang Liang transmigrated into the role of a villain's lackey, possessing neither exceptional spiritual roots nor a powerful background. He survives fights by hiding, contributes "damage output" by shouting, and cultivates purely through unwavering righteous spirit (i.e., no money). How utterly hopeless it seemed to achieve immortality through cultivation! Fortunately, Zhang Liang discovered he had...