The Favor

Note: Should be red before the books.
"New identities. New lives. They thought they were safe in Tokyo, but they were wrong . . .James Thomas has been running since he fled Russia, but for the first time in his life, he isn’t alone: Deacon and Nicole are with him. They’d worked hard to keep their identities a secret. However, when a man from James’ past turns up in Tokyo searching for him, James knows they must eliminate the threat before it eliminates them.
But that means going back to Russia for intel, and if James or Deacon show their face on the streets, they’ll never get out alive. They need someone to go in their place. Someone unsuspecting. Someone with no links to the Russian Mafia. Someone crazy enough to help them in return for a favor. They need Kyoji Tohmatsu—Tokyo’s infamous gangster."