Is this under a different name because I swear I’ve read this before

There is a similar story on this site so you might have read it and mixed this one up. Art is not really the same but it gives off the same vibe and the one who is sick is not a brother (●'◡'●)ﾉ There are many crossdress stories here too, like a guy who dress as a girl for the sake of money to make a dying grandpa happy and as time pass by falls in love whit his grandson.