Monster Harem In The Tower - Chapter 9: Night

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

With the ability of the King of Silver, the first king in “K”, to be immortal and immortal, he crossed into the world of One Piece. Although he became a Pirate, he did not target One Piece.

His goal is to live freely on the sea, it’s that simple.

- Description from novelbuddy

In a hall that was supported by golden craving runes pillars, the surroundings were silent except for the heavy breathing of an injured white robe teen with green hair and blue eyes while holding a sword in his hand was kneeling on the floor. The blood covered his whole white robe in red.Many bodies lie on the floor around the green-haired teen, indicating how intense the battle was.Standing in front of the injured green-haired teen was a teen named Kaal with long jet-black hair and deep black eyes, with a handsome face with a dominating aura.By piercing the sword in the chest of the green-haired teen, Kaal said with a smirk on his face, “Finally, the dog died...”.Taking out the cursed soul orb, Kaal read the memory of the green-haired Raven.“HAHAHA HAHAHA, so that was his secret. a soul from another blue planet called Earth possessed the body of Raven...” Kaal said while laughing.Like a story of a novel on his planet. Raven must be the MC who might be destined to ascend to the height of the world, and I might be an arrogant young master-type Villain, whose role is to make the MC shine.

“I can definitely become an immortal,” she said.He looked her up and down, sneered, “You can indeed become an immortal, a Lazy Immortal.”She breathed a sigh of relief, fully self-assured, “A Lazy Immortal is still an immortal.”He was speechless. Great, very powerful, who says a lazy person can't become an immortal~