Does anybody know where I can read I am the daughter manga

you mean this one
http://www.mangago.zone/read-manga/am_i_the_daughter/

yes that one, do you know

This one probably doesn't have a novel.

So I can't read it anywhere else

Anime planet is telling it has a web novel, but it's very hard to search for free. You most likely have to pay money to read the novel. Kakaopage has 100 chapters (manhwa). You can check it out on kakaopage if you want or here the link for 36 chapters
https://newtoki95.com/webtoon/8738692?stx=%EB%82%B4%EA%B0%80+%EB%94%B8%EC%9D%B4%EC%97%90%EC%9A%94&title=%EB%82%B4%EA%B0%80+%EB%94%B8%EC%9D%B4%EC%97%90%EC%9A%94%3F