Collection
Stories about a Japanese police as an undercover in a Tokyo Hotel working closely with a staff from the hotel to solve murder threats.
In release order
2019
A serial (3) killer leaves a GPS code of his next target with each victim - this time Hotel Cortesia Tokyo. A detective goes undercover as hotel staff - haircut, manners etc.
2021
An anonymous letter is delivered to the Tokyo Metropolitan Police Department. The letter states that a criminal of a murder case will appear at the countdown party Masquerade Night that will be held at Hotel Cortesia Tokyo. Detective Kosuke Nitta must go undercover and work again at the Hotel Cortesia Tokyo. There, he meets Naomi Yamagishi, who works as a concierge. Without any information about the criminal, except that the person will be in attendance, Detective Kosuke Nitta works feverishly to find the criminal among the 500 attendees.
