This time, Kogoro took over an unusual affair, from a well-known novelist who specialises in teen novels particularly, named Chu Masamura. He requested Kogoro to investigate regarding a deceased, who is called Taizo Yasuki, who died recently during a... (more) car accident. He persistantly emphasised his need, to ascertain all of the late Yasuki's friends and acquaintances, especially those "questionable" ones.