The sickly male protagonist is sadistic and sadistic.
Before she was nineteen years old, she was a good girl who fell in love with the romantic and uninhibited man, felt sorry for him, and devoted herself to him. In the end, the dream wakes up with a broken heart.
After she turned nineteen, she changed her appearance, and when they met again she had changed and became a woman.
He was sick and in pain, so she couldn't let go. Love is too difficult to let go, so that youth is a little painful.