Wait I kinda forgot what this story was about, and I’m too lazy to read it all, can some...

This is as much as I remember so forgive me if I make mistakes.
Ch1
There is an original heroine in the story(Let's call her OH) and ml lead of the original story is the mc's brother who is right now in the story away at royal boarding school meeting OH. Mc is a duke's daughter with the Cinderella family trope (dad died, stepmom, syepbro and stepsis evil) And remembers her past life's memories and the book plot at the start of the story and she is destined to die at by poisoning so she works to prevent that by making friends with influential people and having them back her so her stepmom would somehow be more scared of getting caught.
Ch2-3
She learnt to sew clothes in her past life so she sews her old clothes to look good so she can appear in front of the 2nd prince (call him 2Pac he's also the white hair guy) and through him make a connection with the princess (by making him pass along a hairpin gifted by her to PC) (princess name is Cynthia call her PC). 2Pac's original engagement was supposed to be with Mc but stepmom said Mc was too sick thus making evil stepsis and 2pac have planned engagement (they haven't had it yet its just planning) . Mc clarified to 2pac that she had 'recovered'.
Ch4-5
Said connection with PC got her invited to royal Ball. Stepmom sabotage by giving her ugly dress but Mc sews it into a decent dress. She pretends not to go in front of stepmom but goes behind her back and attends. Stepmom mad and grounds her. After mc's gone stepmom reveals plan to marry Mc off to rich old man to secure her position as duchess and make stepsis crown princess.
Ch6
Mc goes to information guild in disguise and meets pink haired dude. Strikes a deal to tell him location of precious stone in exchange for profits. Pinky takes a fucking teddy bear as colatteral. Also Mc gets in contact with her bro behind stepcunt's back.
Ch7
Pinky and Mc confirm deal, after she leaves he reveals he knows her identity (big surprise lmao her disguise was f*cking terrible) Mc attends tea party with princess
Ch8
Emperor interrupts his teen daughters tea party(rude much dad?) he tells Mc to take a walk with 2pac outta nowhere. 2pac somewhere along the walk says he should get engaged to her instead of stepsis. Mc already doesn't trust this flowery motherfucker. She knows He'll get engaged to her stepsis if mc's stepbro succeeds as Duke and to Mc if her real bro succeeds. He also strikes her a deal that if they marry he backs her bro as Duke in return Duke backs him as crown prince. Mc rejects it cause that would probs lead to her stepmom wanting to kill her more.
Ch9
2pac tells her to think again, Mc actually knows he won't become king also her bro backs prince Claude (who is gonna be king) she says her fam won't like it but she'll consult with em. He asks to call each other by names (bugger off pisshead). Mc visits info guild with a guard guild sent her named sTale. In original story the stone she gave info bout is found by her bro and a war starts between demons n humans for it n hooman win with help of her bro.
Ch 10
Mc gets nearly robbed, demon daddy saves her (he the dem king he offs himself outta shame after losing war in future acc to orig story)
Ch11
They're banned from that town but they safe. sTale bitches bout demons. She started attending parties n she wants a private tutor so she uses connection with info guild to get one.
Ch12
Mc meets pinky there he tells her he knows who she is. They have dinner for some reason.
Ch13
She says she knows him too(his names Kenneth pinky's nickname game upgraded to Ken) . End of dinner gets her teddy back n she takes her maid to a clothes shop owned by Ken to suck up to her.
Ch14
Monsters attack the place (bcus plot I guess) she runs, trips, falls (classic) demon daddy save her.
Ch15
She now doubts demons are such assholes. She thanks demon daddy. Turns out the duchy makes money by their own clothes shop n now Ken's shop is surpassing them screwing over their business. Stepmom's mad cus of that.
Ch16-17
Today's episodes. Thank you very much

Aaaaaa thank you so much!!! I appreciate it that you told me, and the time it must've took you to write that!! Thank youuuu!!!!!

Best summary ever