Tada, Sore Dake de Yokattan desu - Chapter 7 - The Final Puzzle Piece

Soul System Online...][Vengeful Spirit Detected]Zero was once a legend a warrior feared and respected across the land, an SSS-ranked hero at the peak of power. But even the strongest are not immune to betrayal. His so-called allies turned against him, casting him into oblivion. Now, he lingers as a vengeful spirit, unable to move on, his legend seemingly forgotten.But fate isn’t done with him yet.When a mysterious boy with the rare ability to see and communicate with spirits crosses his path, Zero sees a chance for revenge and maybe even redemption. Armed with the enigmatic Soul System, he will carve a new path, defying death itself.The world thinks it has seen the last of him. They couldn’t be more wrong.The SSS-Ranked Troublemaker has returned. And this time, nothing will stop him.

This is an alternate history. Decades after the fall of the Eastern Jin Dynasty, the world is still in chaos, although there is hope for reunification.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Warning: Matured content.Maya DeLuca was born as a result of adultery. She is the fruit of the shameful love affair her married mother had. Her mother passed away shortly after giving birth, leaving Maya to bear the consequences of her mother's sins.Right from birth, Maya was loathed by everyone in her family, especially her stepfather, her late mother’s husband. Maya is the evidence of his wife's betrayal; hence, she is a thorn in his flesh. He abused her, punishing her for her mother’s betrayal.Maya is a junior chef at a five-restaurant and also works as a waitress at her Stepfather’s gentlemen's club to pay off the debt she owes him.Maya's Life becomes more complicated when she gets entangled with a handsome billionaire, Dalton Black, as he hires her as his personal chef.Maya obliviously captivated Dalton's heart as love blossomed between them.However, in order to fight for her love for Dalton Black, Maya must face the nefarious plans devised by Dalton Black's enemies and those who wish to break them apart.Maya is Dalton's only desire, the light in his grimy world. He would do anything to be with her forever, even though she is a weapon that his enemies plan to use against him.