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 met Arca fist to fist. The strength of the blow reverberated through Cael's hand, but he was already throwing another punch.

Arca matched Cael's eagerness with his own palpable anger. The intense combat left little room for spells, and both opponents wanted to vent their emotions first.

The priest's combat technique was just as unrefined as Cael's, but where Cael preferred punches, Arca went for leg swipes and grabs at every opportunity. He really was stronger than the last time Cael saw him—at the very least, he would've lost much more slowly in the previous duel if he used his armor spell back then.

His combat technique of today didn't work out well for Arca, though. His attacks were too slow, and Cael took the initiative, hitting Arca's arms over and over until the priest slipped in his defense. Then the next Cael's punch connected right with his breastplate with a dull bang.

Rematch, part 2