The villainous daughter of the Duke, needs a hero - Chapter 18: The Campus Murders

Nine Tribulation Immortal Emperor, reborn in the city!One Earth, one Immortal Realm, the difference is as vast as that between heaven and earth!

The Death Knight, who mu*dered his family and brought calamity upon humanity, is given the chance to go back in time and correct his mistakes.Damien Haksen possessed talent that would have gone down in history. However, an Archlich, the pinnacle of Dark Magic, turned him into a Death Knight and made him live as a s*ave.Under the Archlich’s command, he ultimately mu*dered his own family and destroyed an entire Kingdom.He regained his senses at the very last moment, but it was already too late. Just as he was about to give up everything, a miracle occurred.Regression.Returning to where he was before it all began, his goal was clear.“This time, I’ll live solely for the happiness and future of my family. Of course…”After condemning every last one of those filthy Dark Mages and giving them a taste of hell!

Ai Qian, a street-crazy author who wakes up every day because of her own poverty, is bound by the system!
The system is obedient: Host, you are the daughter of a rich family, you are a billionaire female president, you are a superstar… Are you happy?
Ai Qian: Hehe, I might be happier if there is no hero who can kill me at any time.

- Description from novelbuddy

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).