In the foggy port city of the Republic of China, a magical stage where steam and sea fog intertwined, a shocking mystery that spanned twelve hours quietly started. The down-and-out detective Xia Jiuge is addicted to sweets and insists on singing reasonings when solving cases; returned reporter Du Mingzhou wears a detective vest stuffed with osmanthus candy and takes a photo to find out the secrets in the murderer's pupils; the humanoid map newsboy Bai Xiaotuan misses three times with his slingshot, but hits key evidence every time; and the pendulum girl who always waltzes at the scene of murders has a murder weapon under her skirt that is sharper than the truth.
