Lingering Doting Marriage: Big Boss, Little Sweet Heart - Chapter 1648 - 1638: As if the Soul Was Torn in Half

While the demons were rising, mankind was about to become extinct. Six temples rose and protected the last territory of mankind.

A young boy joins the temple as a knight to save his mother. During his journey full of miracles and tricks in the world where temples and demons are antagonistic to each other, will he be able to ascend to the strongest knight and inherit the sealed divine throne?

- Description from novelupdates

Crossing to One Piece world, he became Roger’s younger brother.

WARNING!!! -Explicit-For years after Livana lost her sight, she lived in the gilded cage of her family’s expectations—engaged to the man chosen for her, confined to the shadows while he managed the empire her mother left behind. But blindness didn’t make her powerless. She heard everything. The whispers in the other room. The treachery in her fiancé’s voice. The betrayal woven into every conversation with her cousin, all caught by the devices she secretly planted.She had a plan to escape—one she’d crafted meticulously. Until her sister proposed something far more dangerous.Involve the Blackwells.Their family’s most hated rivals. The ones Livana had been raised to despise. And the man her sister suggested? *Damon Blackwell.* The arrogant bastard who had tormented her since childhood. The same man she’d once—*against her better judgment*—ended up in bed with after being drugged and set up.The idea was reckless. Madness. But the thought of burning her engagement to Knox to the ground, of watching her father and stepmother’s fury as she tied herself to their enemy? Delicious.What she didn’t expect was Damon’s obsession.He was ruthless. Unhinged. Exactly what she should have anticipated from the heir to the Blackwell mafia. But Livana was no damsel. If he thought he could control her, he was wrong.She had her own games to play.And this time, she wouldn’t be the one losing.

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