Endless Ascension - Chapter 246 - : What about being a slave for life?

Five years ago, after a car accident, Ye Fan fell from a demonic prodigy to an “idiot”!Five years later, on the same day, his seven older brothers and three uncles all perished on the battlefield, a family of ten loyal martyrs!At the funeral, Ye Fan's fiancée called off their engagement. The stunning sister-in-law declared on the spot, “If you didn't want to marry him, I will! I am willing to carry on the Ye Family line...”Ye Fan felt uneasy, “Sister-in-law, please don't. I'm really not an idiot anymore!”

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

Vincent Strider was a gun for hire who made a living by killing whoever it was his clients wanted dead. But during one mission, he died in a fierce gunfight. However, death was not the end for him. Vincent found himself reincarnated in another world, facing a floating interface that flickered before his eyes.[Synchronizing Host!][Military System initializing.]Vincent found out that in this system he received, he can summon soldiers, tanks, aircrafts, and even warships! This is going to be exhilarating.

A modern-day antihero, who was infamous for his devious acts, dies in an explosion meant to take down a powerful criminal syndicate. Waking up in a world of sword and sorcery, he finds himself possessing a fragile, powerless body with a strange “System” that seems broken. Initially thinking he's doomed, he learns that by pretending to be weak, he can manipulate others into revealing their secrets, granting him abilities they possess. As he rises in power, he discovers that the System was intentionally sabotaged—by none other than his own future self.