The first night Chen Yang moved into an old building in the western suburbs, he encountered a knocker.
This was supposed to be a dead end, but he accidentally activated his identity as an inspector of the "Supernatural Affairs Administration". From then on, he was an ordinary social worker during the day and a non-staff civil servant specializing in handling supernatural incidents at night.
What he didn't know was that there was a door connecting the two worlds hidden under this seven-story old building. And those ghosts he sends away will leave a white paper flower at the corner of the corridor.
Twenty-one paper flowers and four real flowers. Every flower is an answer you have been waiting for
