HDXD: Omni Harem System - Chapter 81: Her Purpose

Demons are rampant, and monks regard strangeness as the way of heaven.

If a mortal wants to practice cultivation, he must dig out his eyes, cut off his limbs, and cut off the root of wisdom…

Ren Qing, who came through the journey, found that by virtue of his supernatural powers, he could be exempted from the cost of cultivation.

[No-eye method]: Through swallowing the eyes, one hundred and six immortal eyes grow all over the body.

【Poison Bone Technique】: Soak your own bones in poisonous water for thirty-six days, then re-implant them in your body, and train them to the point where no grass grows.

[Sutra of the Dead]: Seal Laogong, Yongquan, Shenmen, and Yintang points with rivets, and bury them in the ground for three years.

ps: There have been millions of finished novels “The Fifteen Years of Liaoning Zhai Fighting Iron”, welcome to follow up.

- Description from novelbuddy

In a world shadowed by death, the silent realms await, home to the undead and the Grim Reaper's sanctuary. As long as death's presence endures, the great Undead Queen will return.

“From my viewpoint, this so-called supreme bastard’s body will serve as a valuable asset to simplify my life.”Dane was a carefree slacker until a deadly virus turned humanity into flesh-eating monsters—his own roommate included. After being devoured, he mysteriously awakens inside a simulated LitRPG world as a hidden extra, far stronger than the protagonist. Gifted with Adaptation and a heavenly beast, he rises through Soul Academy, defying expectations. However, a mysterious hindrance threatens his newfound power, forcing him to fight for survival.‘…One… Two… Three… Wake up!’

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.