Board Thread:General Discussion/@comment-6192846-20151223075113/@comment-27428960-20151224170817

Sloth Sinner wrote: (Snip) Also, Servy, I wonder, why are people calling eachother "Kayo-san" instead of "Sudou-san"? Isn't that supposed to be how they call eachother in Japan if they are not close friends/family?

I think it's mostly a relationship thing. Bufuko and Anan know Kayo on some level thanks to the Octos.

As for Perrier, she's a foreigner (whose speech uses katakana in the writing) so she isn't fluent like Ma, and possibly doesn't know or doesn't care for the custom.