I am that male friend in the harem story - Chapter 212: Sensation

Reincarnated as the emperor of the dynasty, Zhou Xuanji, he thought he would be rich and noble for a lifetime, but he was forced to flee the palace due to the grievances of the palace.

What surprised him was that a cheat program invented in his previous life turned out to be a reality!

At the age of two, he obtained the Red Dragon Sword, which contains the soul of the Red Dragon!

At the age of three, he obtained the second Divine Sword!

Every year you grow, there is an extra sword!

A hundred years later, Zhou Xuanji took hundreds of divine swords across the world!

Ten thousand years later, Zhou Xuanji stunned the heavens, Wan Jian volleyed into the sky, and ascended the throne of myth in the name of Sword Emperor!

- Description from novelbuddy

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates

The Queen of the elves wants to bear his child, the vatican’s saintess is his maid and the empire’s princess wants to elope with him.

But his only concern was his delusion of taking down the creator of the world!

- Description from Novelupdates

Where there is light there shall be darkness

Hero? Nahh I'm the demon.

In a world where the demons are looked on as the incarnation of evil, the human-demon war raged on across the whole continent.

The Seraphims, protector of humanity, and the Demon lords who rule across all demonkind. Amidst all the chaos, Simon was reincarnated as the lowest ranking demon noble.

A brutal world where the strong feeds on the weak, eat or be eaten, kill or be killed. A demon far off from humanity….a dream unfulfilled in his previous life will be achieved in this life. Taking on the moniker of Laplace, he destroys all his enemies and rise over them.