How Does The Demon From Black Clover Influence Main Character Powers?

The day Ruben Luisetti (Overlord Vampire of New York City and heir apparent to the Vampire King throne) first saw the feisty, golden haired beauty with the large luminous emerald green eyes, he had a ‘feeling’ He was shocked, he hadn't had one of those for many years and this one was strong attraction. He became intrigued, when during his investigations into some underworld murders, he kept bumping into her. This 'feeling' should have worn off, it didn't. In fact it just got even stronger, as a deep desire to possess this creature crept up on him. When he saw that she was clearly being enslaved and controlled, he felt obliged to save her and free her from her bonds. And able to be with him! But what is she? He thought she was perhaps Fae…boy, was he wrong and shocked to discover she was a Demon! . Katarina is a soldier demon, owned by Demon Lord Basille. Lent out to the human Scott McGowen as part of a blood pact contract to make him more powerful and rich while at the same time collect the souls of two hundred mortals for her Master to bolster his ranks in the Demon Realm. Until Ruben Luisetti steps into her life and shows her that what she thinks is her 'normal' in life, doesn't have to be… Well used to being merely a tool Katarina finds herself strangely entranced by the delectably handsome and powerful Vampire Lord and finds herself enthralled by Ruben's dominant, possessive yet gentle and caring nature for her, showing her a new way of being treated by someone…being treated with respect, care and…. Love?? . Can Ruben free his beloved from the Demon Contract? Can he free his beloved from Demon Lord Basille? To become entwined by Fate?

Lyon Aschere, well-known as "The Reaper" is the youngest person to be an official Royal Knight of Avaritia and is also the personal Knight of King Charles Avaritia II eldest daughter Princess Jiniya Avaritia. But with him being a lowly commoner with high aptitude for magic and martial arts his status as a Royal Knight was hidden from the public. A few weeks after being appointed as a royal knight his left eye began to ache, showing him disturbing images, thinking that it was only a matter of hallucinations he disregarded it. Until the Princess found out about his problem, the princess being kind to her childhood friend, decides to help him figure out what is happening to his eye, venturing out to different Kingdoms looking for answers. But to their surprise the world was riddled with secrets that dated back from thousands of years. The story follows Lyon and Jiniya as they try to understand what powers lie behind Lyon's eye.

Miaka Von Speltsper, the myth, the legend and the daughter of two Gods. Miaka, the Demon King and the head of the Dark Council is the most powerful demon ever known to mankind, but she has a secret. She’s a hybrid. And the world she lives in has hunted down and eliminated every single hybrid in all the dimensions. But now…someone knows her secret, someone who has the power to destroy her. However, the world is changing and one of those changes is Kaleb Takeshi, the man with extraordinary eyes who has stolen Miaka’s heart with just one glance. But there is something about Kaleb that Miaka can sense but can’t describe. And not only is he human, he’s an enemy who has decided to give his loyalty to her. In this world of lies, deceit and betrayal; can Miaka trust her heart or will she have to choose century’s old traditions to stay alive? Because if she dies, it will truly be the end of the world.

Arianna had not planned on using magic to summon anything, she just wanted to get out of an arranged marriage. She was told of the ancient magic of summoning a guardian but instead she had summoned a demon—the demon king himself. But what would he ask in return for his loyalty to this princess?

A devil child who was raised by a devil hunter like a human child. Under the auspices of the devil hunter He finds love, affection, shelter, and knowledge without knowing his true self.

Kiara was the Demon Queen And was ruling the Demon world, but suddenly an angel came to her world. He made emotionless Kiara believe in true love and then killed her brutally. However Kiara wanted her revenge. She was so desperate that her soul travelled in the time space, instead of dying. On the other hand after Kiara's death demon world destroyed, and Kiara's Crown which can give powers beyond their imagination fall in portal which connect all world together, That's why all the demons started searching for the crown. 10 thousands years later, (Human world) In hospital a girl with extraordinary facial features declared dead , but suddenly the girl opens her eyes and says "Prepare for destruction! DEMON QUEEN IS BACK. This time WHOLE UNIVERSE WILL SUFFER MY RAGE!"