Lord of the Oasis - Chapter 250 - Hint of System Quest

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

You know what’s great? Turning eighteen.You know what’s not so great? Opening your eyes to a room you don’t know, followed by the world's most intense headache.This is how my story started. Where it goes from here is anyone's guess.---This is a Pokemon fanfic about a girl that gets brought into the Pokemon world from Earth.---This is my first time writing a fanfic so take it easy. Helpful criticism is appreciated and I may ask for suggestions but in the end I am writing this because I want to. I'm not sure what tags and genre will encompass this story but I will update it as it evolves.

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

In the third year of the reign of Yu State, it rained in the city of Weizhou.

Li Ang woke up in a daze, dreaming that there was a sword hidden in his head.

- Description from novelbuddy