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

Cael turned to his wife, expectant—and tense again as he waited for the answer.

Ginevra smirked back at Cael. "Of course. I'm sure that by now even people here have heard about him." She glanced at Dieter. "We had to beat three dragons just to get to talk to him. A golden one, a quicksilver one and… A rust dragon, I think?"

Dante's notes on the subject were pretty extensive, and now Cael remembered them without trying to. He nodded.

"Yeah. Red dragons control fire, and rust dragons just feed on metal. They are not on the top of the dragon hierarchy, as vague as it is. Regardless," he turned towards Calvo, then looked at Myrna. "Go on."

"No!" Calvo protested, inching away from Myrna as she took an eager step toward him. "I'm not letting her get closer! So you say she is who she pretends to be—but it was you who said that the impostor doesn't have her memories. What if it does?"

Fifth hour, part 5