Garessta

In this world riddled with strife, where even kids know spells, and powerful mages are nobility, Cael was born with no mana at all. An heir to the family of mages, he was his father’s disappointment, and his city’s laughingstock. But who knew that he had a much different destiny? To prevent a looming catastrophe no one else knows about—to stop the Starspawn. 

“Blood Mage System activated. Greetings, user. I am your Blood Mage System. Consume the blood of powerful creatures to purchase new abilities.”

With that power, Cael will become a hero able to stand against the fate that crushed countless others—even if the world will call him a demon instead.

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Although the novel has a harem and r18, neither are the focus of the story. Cael only has very few (2 right now and at the moment I don't plan on increasing this amount) girls, and there aren't that many r18 scenes. Take that as you may~

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My Blood Mage System

The people of the Mattoni Empire: courtiers and the servants, the guards and the ejderha ones, even the Speaker himself—everyone was struck speechless. Their dark faces grew pale, and their jaws fell to the floor—yet no one dared to exclaim their shock aloud in the presence of the Speaker.

Who, at the moment, looked just as lost as everyone.

"A vampire?" the Speaker Imraan shook his head. A second later, he sat straighter again, and put back his arrogant countenance. "I heard about your kind—since when do you stand next to humans instead of against them?"

Cael smiled, deliberately showing his fangs. "Recently, we have decided that our races should unite to survive against the bigger threats in this harsh world. With the resources of the Kingdom of the Bear and the power of vampire mages, we will not lose to anyone."

Grand reveals