If I kill ghosts, I will become stronger: Invincibility starts with breathing

Thousands of years ago, the power of darkness created the first ghost king.

The ghost king can convert humans into ghouls through blood.

They possess great power, long lives, and almost immortality.

800 years ago, in order to fight against ghouls, human beings established organizations such as the Ghost Slayer Squad.

500 years ago, an astonishingly talented warrior among the Ghost Slayer Team created breathing techniques. Since then, humans have had the power to compete with ghouls.

Today, Lu Yao was reborn in this world, possessing the ability to increase the power of qi and blood and improve his understanding by killing ghouls.

Since then, ghouls have taken humans as food, while Lu Yao has experienced ghouls.

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