NoWoRRyMaN

[His Strength is Unmatched And His Powers Unparalleled; His Existence Unequaled And He is... Unrivaled.] 
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After getting stabbed to death by his girlfriend, Zane was reincarnated as Zeus— a half-demon, half-vampire. When he was one year old, he lost his parents, his castle, everything— because of the Gods and Heavens. Surviving his cruel fate, he lived among humans as one of them by hiding his true identity. 

Even though his life was nothing but suffering, he considered it as perfect; he had friends, a seemingly faithful lover, and the power to protect the world from any evil. With his limitless power, he could easily dominate the world, and neither Heaven nor Hell could stop his growth, but he chose the righteous path. However, for unknown reasons, he was betrayed and sealed to a deep slumber.

After being sealed for eternity, Zeus woke up in a mysterious dungeon to find the person who broke his seal— a half-angel beauty at death's door.

The day of his awakening, he swore that he will get his revenge and reclaim what he has lost—that is everything. Join this lonely demon on his Odyssey and watch him become the one and only— Unrivaled Demon; where no existence can equal him and no entity can defy him.
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Note:- As the title of the novel says, the MC is extremely OP and knowledgeable from the start. He will have some trust issues because of what happened in the past, but no useless drama.

The Story development is slow but the story is not slow-paced. I believe character development, and building the plot is important than writing things that don't make sense. 

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The characters' names and relations in the novel are based on greek, Norse, Egyptian, and other mythologies, but they are not accurate as they should be. I have made some changes as per my choices, and this is just fiction.

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Disclaimer- I don't own the cover.

Unrivaled Demon's Odyssey

It was a sunny day, around noon, and the sunlight was reaching every corner.

A man in adventurer clothes who looked to be in his early thirties walked through the streets.

He looked in a hurry, although he wasn't running.

After walking hastily for a while, the man entered the building called a guildhall.

As soon as he entered, everyone stopped talking, and their gazes stopped at the man.

"Heha!" a brown-haired man walked out of the crowd and laughed at the man.

Another man walked out of the crowd and placed his hand on the brown-haired man's shoulder: "It's Arnold the Abnormal."

Arnold ignored the crowd and walked straight to the counter. He looked at the woman at the counter and let out a weary sigh.

"Why are you here, Arnold?" she asked.

"Please." Arnold slammed his head on the counter and begged, "Give me an adventurer pass."

Arnold, The Abnormal