The Reincarnated Assassin is a Genius Swordsman - Chapter 437

Oscar, a destitute young boy, died in a tragic accident and was reborn in the forgotten realm. As a member of the lowly Birch tribe, his solace comes from the fragments of a guardian's spirit, residing in his soul. After the decimation of his family in the hands of a powerful race known as the dreads, he embarked on the part of revenge, leading him to the path of transcendence.

On the will left behind by the 14 year old suicide victim K:

“Taku Sugawara is the devil. Nobody should believe his words.”

Being able to see into people's past has no real appeal for the teenager this story is about, letting him use it only as amusement and to show off when he was drunk.Never watch into someone's past beyond a superficial level.Never try to find out more than you should.NEVER. EVER. LOOK. INTO. THE. FUTURE.But everything changed the moment he was forced to look into the future, was forced to investigate a murder, and was forced to make the acquaintance of the victim's twin brother('s fists).The more time passed, the more it appeared that the primary reason for this murder wasn't a local problem, but a global one.This single, marred corpse was the beginning of a threat that would shake the world.(MC looses a screw when he enters the prison)BL, first-person view; MC is shuo (perhaps even a reversible couple); love interest falls in love first; both MC and ML are straight, mutual bending, Enemies to Lovers

The daughter of Prime Minister is a nympho?

The brutish Prince is her husband?

The stroppy Princess wants to kick her husband off the marriage sedan?!

“Shit! I want a divorce!”

“Why?!”

“You can’t satisfy me in bed!”

The next day, Prince Chennan becomes the laughingstock of the whole Kingdom of Dayue.

How Hua Yueling, the Stroppy Princess with a soul from 21st century, will create her legendary story in this ancient world?

- Description from Novelupdates