I Saw a Ghost in My Left Eye, My Ghost Best Friend Knocked on the Door in the Middle of the Night

[Catch ghosts + system + no CP] Qiao Xingchen had an accident when she was seven years old, resulting in some unusual changes in her left eye. In the years that followed, she wore special glasses. Unexpectedly, her best friend had an accident, which changed her life drastically. Her best friend has become her life ghost What happened to the ghost girlfriend who knocked on the door in the middle of the night?