I LOVE YOU TILL I DIE

Miyu's developing her feelings for kagawa,
They are somehow crossing their paths, but kagawa didn't notices it, she wants him to notice her everytime, so she started to be so curious about him and even stalks him.
As the things go on...
Will kagawa realize it?, he is a shy teenager with achromatopsia, heart disease, and asthma.
Will Miyu understand him despite all of his imperfections?.
or it will become a tragedy for both of them?,
What fate kagawa and miyu will be in?