Resolved About a Duke's daughter who hides her idenity as a Princess, and she is labeled as Villainess

So the work os on hiatus, from what i remember it Has 6 normal ch and 2 'extra' chapters that mostly are just Character presentation

MC is in reality a princess of their country, she hides as Duke's Daughter just because she wants to xD
Her fiancé is The son of a Duke, but he does not know her real idenity and he fell for heroine, and that biAch is lying about MC bullying her becc of jealousy
MC and her fiancé are friends (but not rn) and they have another close friend that is son of another Duke, (and he is definetly ML)

The MC fiancé told her he can't escort her on a big party, becc he is gonna be escort of his lil sis that still doesn't have a fiancé (what a liar), MC accept becc she is not in love with him so she doesn't care
So she asked her other friend if he will be her escort, he agreed and secretly her maid told him to wear tuxedo(White colour that is a lil warm/yellow (?)) so MC & him will be dressed in the same colour
So our MC is labeled as a Villainess by the pseudo Heroine & MC fiancé & her entourage (?) On some big party, but no one is gonna believe it, becc everybody loves MC

Sorry for my bad english ;-;

 

I don’t think you English is that bad, but your description sounds like the definition of that genre. The only difference is the color of the suits the ML’s matching. Is there any other details?

 

I already found it ^^

The title is:
Kon'yaku Haki Sareta no wa Ojou-sama deshita !?
I reccomend the title