It all started a few years ago. One day a few years ago, she accidentally saved a person, but that person still lost one of his legs. Another day a few years ago, she was sick in the hospital and met a boy who was accidentally blind. One day a few years later, she met another person who had been in the hospital. They spent an unforgettable time together in the hospital with a blind boy, but he forgot her. A few years later, one day, she met the boy she saved back then, but she had forgotten him. When the boy stood in front of her with a cane, was there some conspiracy targeting her?