Synopsis: (From the back of the book)
Undercover detective Msaki Shiiba has one mission in life – to eradicate guns in Japan. It’s an overwhelmingly tough job, but Shiiba’s willing to give up his body, his soul, even his life to achieve his goal. He’s also willing to use anyone to get what he wants.
For almost a year now, Shiiba has been using Keigo Munechika as his “S,” his spy, to get information on the gun dealings of the Yakuza world. Shiiba uses his body in exchange for Munechika’s sensitive information… and only his body as far as Shiiba is concerned. Shiiba vows their relationship will not go beyond that.
A new case and some new information further complicate this difficult relationship. When a rowdy young man with a penchant for piercing and an enigmatic Yakuza leader cross paths with the young detective, sins of hte past are unearthed once more. Sins— sins that just might shatter the fragile bond between the detective and his “S.”