Many's the would be efl teacher who've been lured by Nova's fancy website into going to Japan to have an adventure. You don't even need to have any teaching qulaifications, just an English medium education up to a degree. Friends who've taught in Japan tell me that nobody lasted long at Nova, but that it acted as a conduit into the wider efl Japanese sub-culture.
No more: it seems to have gone tits-up. The teacher's are in a predicament. Skint, dodging the landlord, needing to borrow cash for your air-fare home from people you hardly know... Happy memories!
EDIT: thanks to Michael for this link (from 2004) which give a straightforward view of working at Nova.