No this is not fanfiction! It is original, I can assure you. The novel Demon Lord Spoilt His Pampered Wife is just a nonexistent fiction that I wrote on a whim! It would be sub-story of this story!
Summary:
She is a daunty and domineering person but so what? She liked beautiful things so every beautiful things must be hers. Even if they can't be her, the beautiful must be together with the beautiful things that is under her. She is tempted by the novel Demon Lord Spoilt His Pampered Wife because the author narrated the beauty of the characters and beasts in the novel in detail.
She made a wish on a whim to be part of the story but how would she know that when she made that wish, the god is opening the heaven door and heard her wish. He gave her what she wanted but she actually become the main character's half-sister! Well, that is fine. She looked at the main character and screamed internally. "Such a beautiful creature! I will take care of you until Male Lead take you away from me."
"However... Main character... Why did you throw your other male lead harem to me?"
"Sister, the demon lord is a jar of vinegar! He can't stand the other male presence by my side so... can you take care of them for me?"
"Cute little sister... its not that I don't want but your harem is too scary to handle!! My girls and boys are scared of them!"
He and she are always confused. I couldn't get past chapter 4.