MTL - Conan’s World Stand-in - ~ I believe, I believe very much

Luna Lethal, a name synonymous with fear and power, ruled both the underworld and the elite circles of society. Orphaned young, she rose through treachery to become a master of manipulation and skill. Yet, her reign ended in betrayal—a laboratory explosion claimed her life. To the world, her death was a tragedy; to her enemies, a cause for celebration. But Luna awakens in the body of Aurora Smith, a neglected and ridiculed child despised by her adoptive family. Stripped of her former strength but not her will, Luna faces a choice: seek revenge for Aurora’s mistreatment or forge a new path. As her sharp mind and unyielding spirit transform Aurora’s life, shadows of Luna’s past resurface. Loyal followers sense her presence, while old enemies seek to destroy her again. Torn between vengeance and a fresh start, Luna must confront her identity. Is she still the Devil of the underworld, or can she find peace in a second chance at life?

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.

This novel is also known as Retrograde Gaming

Due to not being able to buy a game helmet, diabolical Li Huailin made a determined effort and made his own game capsule entering into the new online game 《Heart of Glory》. But he didn’t think that he actually got his game character stuck as a bug.

Other people get experience from fighting monsters, he loses experience from fighting monster; Other people get experience and money from doing quests, not only does he lose experience from doing quests, he even loses money.

Right when he thought that he couldn’t play this game anymore, his character died once and his experience suddenly skyrocketed. And thus he was enlightened…

If you don’t seek death then you won’t die, to level up Li Hailin started his life of desperately seeking death.

- Description from Novelupdates