to Yukawa's Holmes
is the Tokyo policeman, Detective Shumpei Kusanagi. Together the two team-up to solve the most improbable of the city's criminal cases. One minor difference in the Sherlock Holmes
comparisons is that the Tokyo team is a threesome. It includes Kusanagi's keen-sighted and demure assistant, Kaoru Utsumi. Kaoru brings the much-needed female perspective to the two bachelors' deductive-reasoning
In The Devotion of Suspect X, a strain was put upon the personal and working relationships of Yukawa and Kusanagi. When a case of possible suicide/probable murder is investigated by Kusanagi, his junior detective/partner begins to feel that her boss and mentor is crossing forbidden boundaries and falling for the main suspect. Utsumi's only recourse is to enlist the services of "Detective Galileo", aka Professor Yukawa. The author is a master at intertwining the brilliance of all three main characters.