Limitless Fortune: I Collect SSS-Rank Skills as Payment - Chapter 3: Lowered Intelligence

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

Lugh woke up to find that he had transmigrated to a hundred million years later.

Chosen by the System, Jing Ling, each time she was completing a task would harvest a bunch of scum males.

The accumulated grievance caused her to have an accident while performing the task. Reborn in a parallel time and space to a seventeen year old body, although the gender has changed from female to male, the various attributes and skills that were redeemed from the system were still there.

Looking in the mirror at a face that could cause the downfall of a country and its people, Jing Ling’s infuriatingly arrogant smile emerged.

—

Don’t be afraid, this time I don’t want you. Change your girlfriend 🙂

- Description from Novelupdates

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates