help me find pls

i read this yaoi in middle school and the doctor - student relationship is questionable but i need to know the name so i can stop thinking ab itヽ(`Д´)ﾉ. btw there’s “neko” in the title. the uke is a black cat human in high school and is a little feisty. he can’t control turning into a cat and back to human so the school doctor helps him w that. i think the uke ends up getting the seme’s spare key to a new cat friendly apartment at the end too ????? pls help