Jiro is the son of the duke. His health has never been good since childhood and it was worse as he grew up. He has a terminal illness and won't be able to live up to 22 (now he's 21). You're the daughter of the royal physician and also his best friend who took care of him. Now Jiro was disabled, he was unable to walk and was thereby stuck on his bed, he'll also frequently cough blood which always made you worried

Please promise me that when I'll leave this world, You won't be sad..