One Piece - I Am A Different Luffy! - Chapter 5 - 4 - Koby.

When the apocalypse’s greatest villain self-detonated to destroy the world, Shen Qingjia died and was reborn a month after Doomsday. No power, no gold finger, no space, no way to gather food, just opened her eyes and not long after has to face fierce zombies!! What kind of non-mainstream rebirth is this ah?!

Escaping, she met a cute girl with a beautiful voice but found that she was the villain who killed everyone. For the sake of the peaceful and sustainable development of all mankind and her own safety, Shen Qingjia decided… to relentlessly reform (fall down with) her! !

Shen Qingjia, “What you want to do?! I don’t like girls… Don’t suddenly rush over!… So soft, I won’t accept, ah ah!!!”

- Description from Novelupdates

Her parents died in planned accident by her uncle. They used her in every way they can. They planned to sue her so she wont take her fathers company back. They want to destroy her life making her penniless. No one knows that she is the not the same girl who was played as puppet in their hands. Five years changed her a lot. Now she is a hidden genius still acting pityfull to take revenge.

Buried alive. Forgotten by the world. Cursed to refine death itself.Rin Xie clawed his way out of his own grave with nothing but broken nails, shattered bones, and a core pulsing with rot. In a world where the heavens punish the wicked with celestial fire, where death cultivators are hunted like beasts, Rin awakens with a forbidden path—one that feeds on pain, suffering, and the ashes of the dead.He cannot heal. He cannot forget. But every wound, every betrayal, every death he witnesses becomes fuel for his ascension.Under a crimson eclipse, he walks through battlefields where spirits still scream. In deserts of bone, he consumes lotus flowers blooming from despair. He learns techniques the heavens sealed away in fear—Soul Wither Pulse, Requiem Bloom, Grief Reclamation.But the deeper he dives into death, the less human he becomes.He no longer cries for the fallen.He no longer prays for peace.He begins to wonder—what kind of death should he become?In a world where power devours morality, Rin Xie will either become the end of all things...Or something worse.

There is no master god, no system, no exchange, and some are just source codes that are fused in the mind to open up the world, not to be forced or suppressed, but to constantly go through in order to become powerful Look at my infinitely powerful source code …

- Description from uukanshu