Symmetry is a short 'detective and crime' stories collection, the plots revolve around a policewoman who works among the outer regions of Tokyo.
To tell the truth, there isn't much 'game of wits' aspect in those short stories because the author had focused more on revealing the mentality of the criminals and his MC's development as both a policewoman and a character, but as a whole it is still an enjoyable, easy read. 3.5 stars.