This book records the story of a girl with low self-esteem who met a beam of light when she entered high school and thought that beam of light was to illuminate her. However, she later discovered that he was like this to everyone. After graduation, the two met again after many years. She is no longer the weak and inferior person she used to be, but he suffers from mental illness for some reasons and cannot live a normal life. He cured her back then, but now their positions have been reversed.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.