[ He's even willing to speak Japanese wholesale if Karamatsu indicates that would be welcome, but as it is, he can't help but return in kind when someone uses honorifics on him first. Just seems rude. Manners are important, kids! ]

In cases like those, your best bet is to approach first and... smooth things out. Help them feel more at home. [ His smile is gentle, appealing, not teasing like he would with anyone else that had more confidence in themselves. This kid talks the talk way too hard for Cain to believe it for a second, his tells giving him away with every attempt. ] What have you already tried here?