[My friend, you must listen carefully. What I am going to tell you from now on is a very, very important thing.
It is a long, long human story that we are about to begin, passed down from generation to generation, never ending.
Our protagonist, she discovered that her closest friend was this mysterious creature, and she died. But she didn't know how Qiqi died at first. The teacher only told her: She died of illness.
She had always kept it secret until she went to the library on the day she entered junior high school and learned the truth.
Then she started her own magical journey...