Secretary's Secret Lover - Chapter 636 I’ll Kill You

Stealing Heroine from Protagonist with SystemWARNING MATURE CONTENT!!!!!R-18

Orphaned at ten and betrayed by his guardian at nineteen, the protagonist's life spirals into darkness, yet some light remains, only to be cruelly extinguished when his girlfriend sacrifices herself during a brutal demon attack.As a result, he is bestowed with a mysterious system that imbues him with the strength, making him dedicate himself to eradicating demons.Upon defeating the Demon King, he is granted a reward and chooses to reincarnate into a novel-like world with sealed memories until age thirteen.Reborn as the second son of a Duke, he yearns a peaceful life and respite from his tumultuous past. However, fate has different plans.In a world full of political games and supernatural dangers, he finds himself caught in conflicts involving a transmigrator villain and a regressor protagonist.Amid noble family ties, surprising friendships, and veiled threats, he must find his way through this new life, all the while dealing with lingering scars and the chaos that threatens to engulf him and those around him.Can he truly find solace in a world determined to pull him back into the fight?Will he succeed in forging a relaxed and slow life amidst the relentless anomalies at every step?Read to find out!!

Traveling through the troubled times, the strong are born, and the dangers are everywhere.

Lu Wangchuan found that as long as he consumed a certain amount of energy and blood, he could directly improve the level of his skills.

Consume 1,000 calories of energy and blood, and complete the Cracking Mountain Fist to open the monument and crack the stone.

Consume 10,000 calories of energy and blood, and cut the river with one sword at the full level of Wuji Swordsmanship.

Consume 100,000 calories of energy and blood, and destroy 100,000 enemies instantly with the ultimate Prajna Dragon Elephant!

…

Time flies, when the energy and blood exceeds a trillion trillion, Lu Wangchuan suppresses the sky with one thought, and destroys the gods with one word!

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- Description from novelbuddy

Demons, devils, ghosts and monsters

Plunge the mortals weak in horrors;

Arms of gods and blades of devils,

Shroud the world in untold evils.

Lu Sheng was an ordinary civil servant in the modern world. After waking from a drunken stupor one day, he found himself trapped in a dangerous world where demons, ghosts and supernatural monsters terrorize the land.

In this world, ordinary mortals live in dark fear and helplessness, without any means to fight against the supernatural.

As Lu Sheng struggles desperately for survival, he stumbles upon a game mod he had designed for a mobile phone app in his previous life. It unexpectedly becomes his special ability, which enables him to instantly level up any skill he learns, albeit at a cost.

Thus, Lu Sheng begins his journey, striving for power beyond the reach of a mortal as he treads the way of the Devil…

- Description from Novelupdates