1 Prologue

'The haunted room at Department F' — a common phrase and relevant gossip at every corner of the detective guild that has built a long time ago. Almost 4670 are affiliate members of this association, and also every day, different calls are received in assistance of solving mystery crimes. Globally and in locally doesn't particularly matter. This association is filled with skilled solvers, some are prodigy from the beginning, some are a late bloomer, some had studied for being an outstanding detective, some has potential, and some are intellectual and skilled.

For me... To which do I belong?

Unfortunately, that isn't really an unfortunate case... I belong to none.