SPOILERS!
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There is no Cinderella 2.0
It's just set in the world of Cinderella.
In the spoilers, Ashley doesn't get married and works as a guild manager.
The prince is engaged to the oldest daughter
The second daughter gets together with a knight.
Mildred eventually falls for the baron and got married. (she also starts a company and teaches Ashley how to manage it.
Okay, first of all, I've just read that the actual Cinderella is the Empress Dowager (Prince's grandmother), not the Queen. And basically, Mildred just misunderstood things and assumed Ashley was Cinderella. That's why she's named Ashley; she's not the real thing. It's also why the prince is blonde, as opposed to having dark hair and eyes like in the original Cinderella. He's not THAT prince.
These are the links I found in other comments
RAW: https://newtoki85.com/webtoon/7321676?toon=%EC%9D%BC%EB%B0%98%EC%9B%B9%ED%88%B0
NOVEL:
https://www.novelupdates.com/series/i-raised-cinderella-preciously/
Hope it helps (▰˘◡˘▰)
Spoiler alert for those of you who haven't read the spoilers to this story yet
Real Cinderella in the house, y'all