MTL - The Devil’s Cage - Chapter 255 found it!

Only a pure maiden can have a privilege to make contract with a spirit.

In Areishia Acadamy, maidens from noble family were gathered there, giving them an elite education to become a spirit contractor. A boy Kamito, by accident he peeped on a girl, Clair, who was taking a bath, and he even made a contract with spirit that she wanted.

Kamito was actually an irregular male spirit contractor, which should not exist.

On the day of her escape from prison, she had died unexpectedly and was reborn into the body of Madam Huo.

As a Rogue Immortal, Tang Qing felt that the pressure on him was very big because you will never know when the next Heavenly Tribulation will descend upon you.

Also, you will never know just how many Heavenly Tribulations you would have to overcome to finally come to the end of the Heavenly Tribulation.

Just right after overcoming the Ninth Layer Heavenly Tribulation, Tang Qing’s body got extremely damaged by the perverted Heavenly Tribulation.

After climbing out of the ruins and being met with an unfathomable encounter, he became the dao companion of a bunch of heavenly women……

- Description from Novelupdates

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!