Miranda's designs will be the whole clothing brand's identity.
That accounts to more than 10%. Besides we are talking about her brand, meaning she is the owner.
She really didn't need to go through Rui and should've gone straight to the atelier. Supervising could've been done by her mom if...
In Japanese "no" isn't only used for posession (Child of Idol), but also as description (Idol Girl).
She is not the child of an idol but an idol girl in this one!
I read this story like 4 years ago and it made me cry lots, one of my favourite pieces honestly.
PS: ofc if you want to enjoy it don't read the synopsis or spoil yourself baka