The Path of Ruin - Chapter 10: Gamble

Mara and Maria-Isabel have always been best friends. But while Mara is happily married to Ethan, Maria-Isabel is trapped in an abusive relationship. When Mara and Ethan help her escape, they never expect what happens next.One night, Mara walks in on a moment she never should have seen her husband and her best friend, locked in an intense, lingering gaze.“Tell me it’s not what I think,” Mara whispers, her voice shaking.Maria-Isabel looks away. Ethan stays silent.Their friendship was meant to save Maria-Isabel. Instead, it may have destroyed them all.A story of love, betrayal, and a choice that will change everything.

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

Killed by a Sage Emperor and reborn as his 13 year old self, Nie Li was given a second chance at life. A second chance to change everything and save his loved ones and his beloved city. He shall once again battle with the Sage Emperor to avenge his death and those of his beloved . With the vast knowledge of hundred years of life he accumulated in his previous life, wielding the strongest demon spirits, he shall reach the pinnacle of Martial Arts.

The Gura Gura no Mi is known as the strongest fruit in the world of one piece.