Our Son

Immortals of Yin and Yang, Lan Wangji and Wei Wuxian, have traveled the world for thousands of years. Always ones to fight evil wherever the chaos is, they don't hide away in a mountain, they follow the billowing resentment one Halloween night in England, hoping to catch the cult-like demonic cultivator they'd been hunting... they're the first to arrive and all they hear is the cries of a child.

Harry Potter x Modao Zu Shi crossover!