Buttercups and Black Roses

Y/N L/N has always been more of a loner and has never really had any friends until they got into class 1A in U.A highschool and a certain human pikachu forced his way into their life eventually making them fall head over heels for him. But what happens when Y/N starts coughing up flowers? They only have three choices- confess their love for the bubbly male, get surgery causing them to forget about him or eventually have flowers take over their lungs, suffocating them. The only way you'll find out is if you read.