One is the lord of Kunlun Wonderland, aloof and cold, and the other is the little princess of the demon world, domineering but infatuated. In the last life, she gave everything to him, but she did not get a look back from him. In this life, she has forgotten her past, but he is pursuing her hard. But this time, it's not just their love anymore. A mistake in the world has brought out the Emperor's young son. This life is destined to be an entanglement between three people...