the ship isn't sailing more than this. at this point I will refuse to read this if she doesn't end up with Arwim, rather than those other two.
I found it here:
"Their daughter is the MC of another novel."
https://novelsformy.blogspot.com/2019/01/miss-not-so-side-kick-lots-of-spoilers.html?m=1
aaaaaaaaaarggggggg i hate little sister, it's like she thinks she is such a hero and that she just is sooooo right and just.... arg I can't even explain it not to mention that apparently people around her is blind to. I swear I am going to be so pissed if the lil sis is going to fall in love with the duke. off I just haven soo much frustration on my heart... like I am not even done yet and it has only started.
raws
https://newtoki26.com/webtoon/287914/능력-있는-시녀님