Naruto: The Outsider's Resolve - Chapter 8.32 (297)

She was once an heiress, but later her family went bankrupt, and her fiancé betrayed her. Besides, she had to bear the expensive medical expenses of her brother. Therefore, to regain everything, she decidedly married her ex's cousin in a deal. Initially, he was very aloof and didn't care about women at all, but he gradually fell in love with her, protecting her and supporting her...

One day, a handsome young man died in a car accident. He suddenly wakes up and find himself in an unfamiliar place, but what surprised him most is that he is taking over someone else’s body.

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

Ruthlessly betrayed by his lover and trusted friends, Tang Xiu found that his soul went back to his previous body on Earth, and, despite he spent 10,000 years in the Immortal World, just a year has passed on Earth and many things have changed. Having an unsurpassed knowledge, Tang Xiu will protect his loved ones and go back to the Immortal World to take his revenge.

- Description from Novelupdates

Enemies to Lovers? You are at the right place!Liam Von Sylvyran: He is the third prince of the kingdom of Solaryn. He is also the youngest of all siblings. Though he is blessed with magic power, he cannot control this magic power. He has always been humiliated for this flaw and has always been compared with his older siblings. So he has a hunger to prove himself. He is the commander of the royal imperial army of Solaryn. He is one of the best fighters on the continent. It is also notable that he is incredibly intelligent, quick-witted, and has extraordinary beauty.Kian Eryx: He is the commander of Oblivara's imperial army. There is a quote that says that he is blessed by magic itself. He is one of the greatest magic wielders in the three realms. He is the definition of perfection. He has breathtakingly good looks, is incredibly smart, observant, and has extraordinary reflexes. He places top among the best fighters on the continent. There is nothing that he lacks aside from a heart.