Oh hey, I know this art style! It's the mangaka of "Lady Rose Wants to be a Commoner!"!! Interesting that the 2 stories they adapted into a manga both have "rose" in their titles. Above all, they're both good!! This story is well-paced and well-written, not relying on tired tropes to carve its own simple, sweet, and short story with a lovely message. It helps that the FL is instantly likeable, too. The ML is cute, too!
Let me take this moment to promote "Lady Rose Wants to be a Commoner!". Please read it if you haven't, it's completed and it was amazing. It stays true to its title and has an intriguing plot and mystery, as insanely convoluted as it may be.