MTL - King Who Will Cross - Chapter 183 system, please give me a reasonable explanation

Orphaned at the mere age of seven and thrown out on the streets with no place to go. Kana lived the life of a street rat. She did what she could to survive from digging through the trash and stealing what she could. But even after almost ten years of surviving, her life still ended short.

With a marriage contract forcefully done, he married her, and all she could do was comply, and resent him deeply for that and for all the following misunderstandings they faced, and she understood too late she loved him.

But after a life of misfortunes, she’s reborn to the very beginning, the day he told her they were married, and she was determined to cherish him in her second life!

Lin Mu Mu’s life goal is to : grow flowers and plants, and take care of Yun Ting.

Yun Ting’s life principles are : Love Lin Mumu, Love Lin Mumu, Love Lin Mumu!

- Description from Novelupdates

“In a realm where cultivators command the elements, bending mountains and traversing celestial rivers, their power is unmatched. Among these mighty beings, the body refiners are renowned, their mere presence capable of rending the heavens and reshaping landscapes. Their skill in crafting transformative elixirs commands respect and admiration. A legend in the Upper Realm, known for an ascension gone awry, suffered the loss of his physical form. Yet, in a stroke of fortune, he discovers a way to regain his corporeal existence. Embarking on a rejuvenated journey in this mystical land! Resolved to surpass his past achievements, he vows to ascend beyond the ranks of experts, charting a path filled with power and ancient mysteries.”

In her previous lifetime, they had married for five years. He meant everything to her, but she was thrown away like an old shoe.