I Thought I was Reincarnated as a Noble Villainess, but I Actually Ended up as Cinderella's Older Stepsister A Cinderella Otaku's Isekai Reincarnation(2022)

Akuyaku Reijou ni Tensei shita to Omottara, Cinderella no Gishi deshita: Cinderella Otaku no Isekai Tensei

Everyone knows the tale of a poor girl, abused by step-sisters and helped by her fairy godmother. Stella knows the story well, but she finds herself reincarnated as a wicked stepsister-the classic villainess role! Rather than playing along, Stella tries to befriend Cinderella instead!

An unconventional, perhaps slightly more realistic take on a classic fairy tale.

(Source: MangaPlaza)