Nine Heavenly Thunder Manual - Chapter 298 - Devil King’s Castle

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

I don’t want to die. I want to be free. To that end, I shall….reconcile myself to the fate of becoming a “monster”.

A strange disease that racks one’s entire body with intense never-ending pain, until the person slowly withers away and eventually dies. After a few years of braving through the pain, the boy is in no luxury to even feel despair. With nary a soul to tend to him, he breathes his last.

The next time he opened his eyes, the boy had become an “Undead” of the lowest rank through the power of an evil Necromancer.

The boy rejoices at having his earnest desire fulfilled, which is a body that will never feel pain. However, he realizes that he is still under someone’s control and how it was no different from when he was cooped up in the hospital ward.

But the world would not leave alone the boy who only wished for peace.

The Necromancer who revives the boy from the dead, names him “End” and attempts to gain control over him.

The Undead Knights, lay their lives on the line to persistently chase after and annihilate the beings of the darkness.

With countless monsters under their command, the Demon Lords rule over their own lands while they all contend for ultimate supremacy.

The motivation being survival and freedom. The requirements being caution and power.

This is the tale of the cowardly King of the Undead. In his pursuit for freedom, he heads into battle and turns tail at times. He knows when to fear his opponents and when to waver in his decisions.

Ren Kuroda, a college student and hardcore gamer, finally conquers Eternal Souls: Last Judgment, an unbeatable RPG, only to be met with a strange message on his screen.“Congratulations, Champion. Would you like to unlock the bonus stage?”When he clicks “Yes,” he is transported straight into the game world, reborn as Terence Ross, the overlooked third son of a minor noble family. Realizing he’s just an extra in a world teetering on ruin, Ren trains relentlessly to survive the coming chaos.However, life wasn’t smooth sailing.He was soon engaged to Lilith Underwood, the girl destined to become the game’s final boss, the Third Great Calamity. To avoid her devastating future, Ren takes a risky approach, trying to make Lilith emotionally dependent on him in the hopes of anchoring her humanity.Yet, his plan backfires spectacularly. Lilith’s attachment becomes a fierce obsession, one that could be just as dangerous as her dark powers.Now, as doom inches closer, Ren faces a double-edged crisis. He must keep Lilith’s powers in check while somehow surviving her unrelenting need to keep him by her side.In a world where even heroes fall, can an extra rewrite his fate? Or will he be claimed by the calamity he tried to prevent?