Infinite Dungeons: I Got Rich by Scavenging and Became the Ghost King

[Infinite-flow | Dark, adorable heroine bent on revenge | Charge in and fight | If she can't win, skulk off and lie low until she can | Level up, dominate, then mercilessly bully the whole world | The humans in the story can't really die, but the ghosts can = the female lead has a rough start, so show her some love]

The main story is written in third person.

My name is Ling Zhouqi. I died not long ago and became a weak G-rank wandering ghost (F-rank is the lowest rank in the ghost realm).

While the powerful ghosts were slaughtering their way through everything, all I could do was scavenge pitifully for leftovers.

As a ghost, I wanted to be properly wicked too, but I can't beat anyone, hahahahahaha (helpless, bitter smile).

Luckily, I can possess people and disguise myself as a human, freely traveling through every instance.

I have to become strong enough, and then get revenge.

(The author gave it everything trying to write horror, but a friend said: "Not very scary. It even feels kind of funny and humorous." [laughing through tears])

P.S. The female lead starts out crazy, then becomes emotionally stable, then goes crazy again, then becomes emotionally stable again. She's gentle most of the time, with occasional bouts of being darkly cunning and losing it. At heart, she's a kind and sweet girl. Fate was harsh to her, so she's become a little abnormal too. Please cut her some slack and don't hold her to impossibly high standards.