Dazai is your best friend, what he doesn't know is that you have a heart disease, a deadly disease. It was getting worse so when you were in the hospital you decided to tell him. Dazai and your mother immediately started looking for donors but they couldn't find any so your mother made the decision to donate hers to you. It's been 3 months since he donated his heart to you and you fell into a deep depression, unable to forgive yourself..