"People with a lonely personality are not necessarily lonely. There will always be a heart lamp for me. In fact, I am happier than anyone else, but no one knows." after six years, Shi Ruobing, who obtained a doctor's degree in forensic medicine, returned home. She brought back the unknown secret stories of that year... the motive of several complicated homicides is always a fog, The murderer has been hiding in the dark. What is the truth behind it... this book can be used as a sequel to "bluestone past". In fact, I still prefer the smart and stubborn little girl.