Earth's Strongest Couple in the Immortal World

Sana Scarlett, the notorious criminal with the ability to Devour other people's abilities, and Ethan Everhart, an inconspicuous bartender who was also her childhood sweetheart, vanished from the face of Earth on a random day. Nobody knew where they had gone, and only they themselves knew that Ethan had received a call from somewhere far away. From another world, the Immortal World. And on their first day, they also gained the greatest Immortal Sect's legacy. They even had the abilities that they carried over from Earth! .... Expect: A very intriguing Cultivation System. Nice world-building. Meaningful characters. Nice plot. Plot too. And a very vast world. No cliché! Explicit lemons! There would be no cheating or NTR. There would be no Yuri either. .... Spoilers. Harem or Non-Harem? Decide for yourself. The Main Character has a lover and she is the world to him. She gains multiple bodies, clones, throughout the narrative—which I dont really know how I would pull as of now—and these clones are his harem members. Read if you want to.