Kanako Yamaguchi

After the assassination of Tokyo's Governor by Yakuza members, the CIA bureau chief for Tokyo puts out a call to an agent that had been raised in Japan and trained by ex-Yakuza. Using his former ties, he quickly determines that a war is brewing between old-guard Yakuza members and a young, crazed leader with ties to the Chinese Tong.

A young man who showed little promise while a high school student becomes a master detective, just like his grandfather.