The Ruler Of Darkness - Chapter 23Book 6:

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

- Description from Novelupdates

Her ex-boyfriend was snatched by her step-sister. Not only that, she accidentally lost her virginity to him due to her step-sister’s schemes.She was nearly confined to her home until he came along. He rescued her from that nightmarish place, if that place can even be called a “home.”He, dashing and powerful, seems to have everything. Yet he suffers from an odd illness where he feels nauseated whenever a woman is within three meters of him. She, however, is an exception. From that fateful day on, their paths cross. He strives to win her heart, and she, too, starts to develop feelings for him.But as the story unfolds between the two, her ex-boyfriend’s growing mixed feelings and the appearance of his fiancée threaten to put an end to the budding love between them…

Marked as cursed and a murderer after a mysterious death, Penelope becomes the Lockwoods' outcast. Despite the towns' interest in ruining her, the crown prince ignores all pleas not to court her. With the help of the prince Tyrion Castro, Penelope unravels secrets linked to her parents' past and reclaims her innocence. Betrayal, danger, and love collide in her fight for the truth.

There is a famous fairytale. A kindhearted girl whose father and stepmother got married and became a family of five with her two stepsisters. The poor girl who was condemned by her stepmother and stepsisters when her father died. The very fairytale, Cinderella.