Not that it really matters for us western readers or the anime only types, but what comic were they going to?
Nevermind, I just realized that it's in the title. Comic Rex. Kind of a waste to use the entire bonus chapter to obscure this fact with an unfunny running gag that's mean to Akari. It's one of the reasons why I think Omuro-ke is a better overall manga than Yuru Yuri. The author's improved from making mistakes in Yuru Yuri and makes better content overall in that manga.