Looking to learn some Fun-Fun Otaku Engrish with the assistance of a cosplay performer/teacher, maybe even also a foreigner? Alternatively, perhaps you are foreigner and wanna exproler more Japanese social? In either case, it looks as if innovative eikaiwa outfit Cosplish has just the gimmick for you.
They also look to be doing a sideline in maids, though no word yet on miko eikaiwa. There appears to be no photographic evidence of the shameless wretches working for them, though they do have a suspiciously appealing Japanese nurse ready to teach you some language, or something approximating it (or perhaps something else entirely).
Unless they are publishing it strictly ironically, their “Maximal Broken English” section is intriguingly appropriate – this from a site offering “Book Shelfes” and “Indies Comics”.
So you wanna exproler more Japanese social? They are/were recruiting, so if you are attractive character, prease appry? Any nationalities is acceptable. If interested, send them your resume and head shot.
Probably just being blonde with blue eyes will net you the job whatever your level of English ability, though they are at least too polite to specify foreign looks as a recruiting criterion.