!!IM GONNA FIND AN APPROPRIATE BOOK COVER SOONER OR LATER BUT FOR NOW YOU'LL HAVE TO LOOK AT MY PFP IM SORRY!! This is an olikase book about the hanahaki disease, which is a fiction disease caused by one-sided love. The one in love must confess to their crush before flowers fill their lungs, and they stop breathing. If they choose to not confess, each day more and more flower petals will come out, along with full flowers, and blood. read at your own risk,,, enjoy!