I, Who Only Know Forbidden Magic, Was Exposed by the Reborn Sister

Su Ze traveled to a parallel world. As an ordinary teacher, he was bound to the forbidden art system. All the superpowers in his hands are automatically converted into forbidden spells! However, in this ordinary world, where can forbidden magic be used? Until one day when he was walking on the beach after work, he met a group of sea monsters. After dealing with the siren and returning home, he discovered that his sister had transformed into a reborn person! From his sister's perspective, he is just a Muggle with no powers and very poor talents. Therefore, the reborn sister embarked on the road of restarting in order to protect him and his family. Until one day, Su Ze's identity was learned by his sister. It turns out that her brother is the Dharma King who saved the whole of Daxia and used forbidden magic! … Old sister: No, no, no! My brother is the Dharma King! I'm lying flat!