Apocalypse Rebirth: Beauties Surround Me - Chapter 19: What happened to my ability...

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

After living a hopeless life and getting exploited to his breaking point for his unique powers, Mithras is diagnosed with a terminal illness, about to die a brutal death when he is murdered anyway by his boss for refusing to betray his sister.

Reborn as the Human Aphrodisiac, and now equipped with a lewd system, Mithras is determined to use this second chance to avenge his past grievances and breed his boss' slimthick mom with a million babies!

But there are two problems:

1) He is now unkillable, but can only heal his injuries and sustain his immortality by drinking breast milk or love juice!

2) The System has not only turned his entire body into an aphrodisiac but also made his cum into a five-star delicacy that can not only improve the beauty of any woman he has sex with but also turn them into peerless warriors!

“Mithras, we want your secret juice!”

“Ok. But how much are you willing to pay for it?”

[Ding! Ding! Ding!]

[Hidden Quest...Bad Girls Become My Bitches...completed!]

[Hidden Quest...I Don't Stuff For Free...completed!]

Surrounded by beauties chasing after his secret juice, and persecuted by their greedy admirers, can Mithras protect his secrets and stay true to his past life's principles, or will he indulge in the temptation of his new powers, becoming the Harem God of a generation?

Spoiler Alert: Of course, he will!

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…

This novel is also known as Master Fu's Mysterious Darling Wife

She is the The Young Miss of Military family Shen, her face is peerless, her temperament is cold, and she is her family’s treasure, but isn’t accepted as one’s child by her mother;

He is The Sole Heir to the top giant Fu Family, his power is unparalleled, indifferent high-born, the captain of the mysterious military force, and the youngest commander-in-chief.

Because of her grandmother’s wishes, she married him at lightning speed. She thought that it was a marriage that she needed, but she didn’t expect to be greeted with his extreme pampering.

- Description from Novelupdates