[I am System 777. I sincerely invite you to travel through time and space as my host and enjoy various benefits. Do you accept it?
The first world: Dressed as a white priest in the Temple of Light, but just a puppet
The second world: Become the eternal white moonlight in the heart of the male protagonist of the Dian family, but the beauty is ill-fated
The third world: Dressed as the male protagonist's sister in the city, but just a substitute
The fourth world: Dressed as the sister of the cultivating heroine, but everything is just a conspiracy
Continuously increasing...
Intention: