MTL - Rebirth of Brotherly Love - Chapter 13

Jing Yan, a once top-performing genius of the Jing Clan who broke through the rank of Ninth Heaven of martial arts and entered the Precelestial Rank at 16, was second to none in Dong Lin City. Yet out of nowhere, his rank dropped dramatically after he was enrolled in the Wind God Institute and became the object of ridicule.After breaking the seal of The Ring of the Universe, Jing Yan was reborn. He finally became the conqueror of The Mainland of Tian Yuan and became the man countless warriors looked up to.

When the system warned the world that it was coming a week in advance, Alex couldn’t have been more excited. In college for a degree he didn’t care about to get a job he didn’t want, the promise of a world where magic and challenge awaited — even at the potential cost of death — was the best news he possibly could have imagined. Alex was ready for a new life. He ready for his only friend to shove him through a portal into hell the moment the apocalypse started. Instead of getting to punt rabbits and farm wolves, Alex finds himself stranded in a warped world where even the bugs are stronger than he is. Even with a summoner class that gains the powers of its monsters, most people would have died. Alex didn’t get the memo. He might have liked challenge a little bit too much. Where others saw certain death, he found something else. Opportunity.

You Liangxing would never open the speech function in game.
That was because his voice was…
Particularly! Kittenish!

But there was one day, he queued up with a teammate who had so much to say that they may as well explode. Vexed to the point of no return, he contributed a voice that was capable of splitting heaven and earth, “Don’t BB.”
The other party who was being scolded stilled. In the ensuing silence, he suddenly let out a long, relishing… Moan.
You Liangxing: “…..”

Later —
He realised that the person was a great god,
Much later,
Without him realising,
He became the great god’s royal healer.
…. And also his boyfriend.

- Description from Novelupdates

What the heck? She, a famous doctor from the 23rd century, turned into a village peasant girl of a different world!