The supporting character's harem is very normal - Chapter 365 I am the strongest genius here

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
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It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

Lucifer travels to the world of One Piece, binds the system, and obtains the fruit of words and the power of hell demons at the beginning.Everything Lucifer says will become reality, and matter can be summoned or generated through sound.Flash, lightning, fire, ice, magma, gravity, earthquake, all powerful abilities, Lucifer can use.By beheading enemies, Lucifer earns kill points, which buy more powerful powers.Akainu: As soon as Lucifer speaks, my magma can only be used to light candles.Kizaru: As soon as Lucifer opened his mouth, my flash was slower than a turtle.Whitebeard: My Shock Fruit can't shake a rock.Kaido: My immortality has failed.Redhead: Why is my strongest Conqueror's Haki gone?Five Elders: Please, stop talking.Lucifer: I haven't done it yet, why are you so stupid?Everyone: You didn't do anything, but you did.Lucifer: A gentleman uses his mouth but not his hands.From then on, a hell demon who used his mouth to attack invincible opponents all over the world was born.Disclaimer: This is Translation

Lying on the hospital bed, Yu Bing, who was severely ill to the point she could not open her eyes, could do nothing but wait for death. Because of her frail body, her parents had disliked her since she was born. And because of what happened in the countryside, her elder sister hated her for a lifetime. Her second sister, Yu Yan, who had been sent away as a child, also hated her for some bizarre reason. All kinds of framing and setup were used on her, and they even stole her fiance from her…

As she didn’t get enough love and care since she was young, she regarded Yu Yan’s false kindness to be real and treated her sincerely, only to have the former trample all over her reputation. For the sake of getting a smile from her parents and some false praise, she lived frugally until she almost died. Looking back on her life, Yu Bing felt it was absurd, and endless resentment festered in her heart. She had never done anything to anyone, so why? Why did those relatives and close family members treat her this way? Since they didn’t want her, well, then she wouldn’t treat them like family anymore.

If there was a next life, she didn’t want to be the Yu family’s daughter! “She’s my sister, so how can I not love her? But the dead have to make way for the living. It’s rare that there’s such a happy event in our family. We can’t let her bad luck taint this home!” Familiar words rang in her ears. Yu Bing opened her eyes with difficulty, and found that she had been reborn back to when she was younger! She had been reborn to the eve she had been sent to the countryside. Her family was arguing about who to send to the countryside in response to the call of the country.

Her elder sister had gotten married in a hurry as she didn’t want to be sent to the countryside, and placed all the blame for the misfortune of her marriage on Yu Bing. As Yu Bing wanted to stay away from the Yu family, she took the initiative to sign up and went to the countryside. She completely cut off contact with the Yu family and vowed to change her destiny!

Betrayed by the kingdom he bled for. Executed by the brother he once protected. Daemon died a war hero—branded a monster.But death isn’t the end. Not for him.Reborn on the day of his cursed birth, under the same blood-drenched eclipse, Daemon remembers everything: the lies, the poison, the crown soaked in his mother’s blood. This time, he won’t beg. He won’t protect.He’ll burn the empire from the inside out.His twin brother Gabriel—the golden child, the “righteous” king—stole everything. So Daemon will take it all back, piece by piece.The nobles who cheered at his execution? Dead.The soldiers who held him down? Ash.The kingdom that worshipped a fraud? Buried under screams.This isn’t about justice. This is about revenge, and Daemon’s not stopping until his brother’s skin hangs from the palace gates.The empire made a monster.Now it gets to meet him.