Spy Mage System - Chapter 12

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

In Ten Heavens Domain, full of respected powerhouses, juvenile Ling Tian accidentally obtained a mysterious iron sword. He refined the Supreme Martial Dao, studied the Divine Spirit Array Laws, fought Ten Thousand proud and arrogant Heavenly Clans, and was undefeated! Seven Feet Sword Tip sweeps away the world, within the Ten Heavens, I am the Supreme God Monarch!

- Description from Novelupdates

Aizel has been depressed since he was a young man. From being tormented in school to being treated as an outcast solely because he is an antisocial person, the only things that kept him going were novels, manga, piano, and sword practice.He never anticipated being transferred to another world while drunk by the side of a lake under the moon. The world with mana is filled with superpowers, magic, and monsters, and he is unsure whether he is dreaming or not.Only to discover later that he possesses a power that may be called the most deadliest thing he could have ever imagined, but with limitations and drawbacks...“All of the kingdoms, magic, and everything about Xelgar fascinate me. But what Alora said makes me very curious.”“I knew I could easily use sword skills, fire skills, and techniques because I had seen and read so many anime and novels. I still can't believe that there is now a unique power as well.”“Is it true that I possess the power of imagination, as Alora claims? Isn't that a little overpowering? However, I was still unable to use some techniques and skills in the fights. The power has a disadvantage and a limitation.”“Is that because of my cracked core? If I can somehow recover it, will I be able to do anything just by imagining?”

“Shit, is this really how I turn out?!”In the time of war he was known as the Body Flicker, Forbidden Magic Maker, and the Golden Blur.Arthur Vaelthorne.He had so many titles that it was unsurprising that the empire was the side that won the war, all because he had participated in it.A man that had the potential to become the strongest, rivaling the old powers, and the talent to back it up....Only ended up as a hidden boss in a popular game, meeting his end at the hands at one of his own students.A powerful hidden boss, unfortunately he had the fate of any other boss: Beaten by the protagonist.Now, with a second chance and the memories of one of the game's top players, he has a chance to rewrite his fate.