Special Forces: From the very beginning, I can upgrade the entry - Chapter 5 - Training in the Snow—A Reckoning for Xiao Zhuang

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

He is the ruler of the mercenary realm, an overlord that gives headaches to the leaders of any country! For the sake of his friends, he’s willing to sacrifice himself; for the sake of his family, he does not hesitate to spill blood! He is a dragon, one that soars above even the highest of heavens. He’s a power that advances triumphantly through unstable situations, stirring up both the winds and the waters.

- 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.

After years of exile, Marcus is coming back home. A powerful mage with few equals, Marcus lives in a world full of monsters and powerful adepts, many of which have bad histories with him. But he has not come back to pursue vengeance or start a fight. All Marcus wants to do is reconnect with old friends, build himself a house, and maybe train a successor or two.Alas, the world didn’t stop just because Marcus went into exile, and not everyone is content to let go of old grievances. Strange things are happening in the world at large, too, hinting at a looming disaster of unknown nature. Still, where there is a will, there is a way.If nothing else, Marcus has a lot of magical power to throw at problems.+++Zenith of Sorcery is set in its own original setting and isn’t related to Mother of Learning… beyond being written by the same person, of course. This is a more classical fantasy story than my previous one, with a lower level of technology and stuff like elves and dwarves, but it has a lot of worldbuilding effort put into it and its own complex magical system. The story has significant xianxia influences, but isn’t meant to be a xianxia story.For those of you not familiar with my previous work, I write relatively slowly. I intend to publish chapters at the rate of one chapter every three or four weeks, subject to further delays as life intervenes.