"Used to be an enforcer for the yakuza. Now I'm the guardian of the city of Shinjuku, picked out by the will of the city to take down the former one. Basically he was pulling some bad shit to try to get people to do something he thought would fix a problem, but it ended up with a lot of people dead and a good chunk of the city destroyed."

He pauses. If this guy is from a world with zombie movies, then... "And I know the magic stuff sounds nonsense, I thought it was too until a few months ago. It's not a total apocalypse, but it is a mess."