"You and I have been destined for three lifetimes, so we went to Sansheng Cliff to get married. You can go if you wish."
"The red letter on Sansheng Cliff is the testimony of the gathering and separation of fate, and it is bright red blood."
"No, they are... Predestined for three lives. There is no predestined relationship in this life, and it will happen again in the next life."
"Could they be?"
"Live for love, die for love. Reenter reincarnation and start over."
…
Concept: ancient fantasy romance