MTL - Study Days at Hogwarts - Chapter 454 Hermione's discovery

Looking at the survivors, their faces the picture of despair, surrounded by zombies at the foot of the towering walls, Tang Ye stretched his arms wide and shouted: “Welcome to paradise!”

I transmigrated into the gacha game I abandoned for 10 years.But, the state of the heroes I raised is strange.

Xuanyuan was reborn into a strange new world where training to be a Xian was a cornerstone. There was however something ancient dwelling inside his body. He could now devour all of creation…

This is the journey of an ordinary boy and his transformation into the supreme being that reigns over all existence! Everywhere he went, he could not help but tie his fate with numerous women. It did not matter whether they were a goddess or a devil…

- Description from Novelupdates

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.