My Witch Sister

In order to avoid the trouble of fighting for the heir apparent, Lan Ling ran away from the kingdom, and accidentally got a witch sister. In order for the witch to be accepted by the world, and for the sister not to be hated by the world, he had no choice but to destroy the church, then unify the world, and instill the good thoughts of witches into the world...? ? ? Isn't this more troublesome than the drama of fighting for the heir apparent? Lanling-Andalu is confused