Can anyone remind me the title of this one QT novel I've forgotten? Not sure if it was translated or I just MTL'ed my way through... It had cute FL with lots of physical strength who liked to pretend to be weak, first arc was about her having heart problems and her doctor 'brother' (I really hope I've remembered correctly). Really hope someone knows it!
I hope you finally found the novel you're looking for, but if you're still searching 'til now, here: Devilish Dream Boy Pampers Me to the Sky Might wanna check this one out and see if it's the one .