The World's most Overpowered Side-Character - Chapter 344 Sinner.

The Yanhuang Ancient Domain, vast without end, gave birth to many Celestials and Demons of antiquity tore Heaven and Earth apart and surpassed the control of the 3 Realms and 5 Elements over the endless years it has existed. Numerous Gods, more than ten thousand races, and humans born with a God class body have also come out from the Domain, traveling through the nether, warping Yin and Yang, omnipotent.

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

In the 5th year of Konoha’s founding.The battle between Hashirama Senju and Madara Uchiha at the Valley of the End had come to a close.In order to treat his elder brother’s injuries, Tobirama Senju resurrected a medical ninja from ancient times, hoping that this individual could prevent the injuries from shortening his brother’s lifespan.This medical ninja’s name was Emiya Shigen.

“Born of Dragons, yet cursed by the Abyss—a king of two dooms.”----Ryuk Knull was nothing—just another powerless human in a world ruled by Titans, Vampires, and Fallen Angels. Until the Knulls came and took the only family he had left.On the brink of death, he awakened the Draconic Pets Evolution System—a power that doesn’t just tame beasts but binds them to his very soul. With it, mere monsters become apex predators.And Ryuk? He is their master.But power alone is not enough.He is a fusion of the most hated and the most divine—A being that should not exist.The abyss whispers. The dragons call. And when he rises—none will be spared.This is the Tale of the Abyssbourne Draconis!