He wasn't wearing any red, so I'm guessing he's probably blue.

(What Ruri said does give her cause for concern though. She's staying with a mercenary. While Ruri may have deemed him well-sane, she disagrees. No one can be sane and want to teach kids to shoot each other, even if the kids weren't...really there in the first place.)

Hey Ruri, is this town filled with dangerous people?