does it go after season 3 or before season 3???
and i heard a rumor that there's a season 4, is it true?
(ps, haven't watch season 3... jus found out there's something called 'kyo kara maoh r' n dont know if i should this first or the season 3)
It's a little 5 episode OVA meant to go before season 3 since it briefly introduces one of the characters from that season.
There's been a petition floating around for a long time about a season 4 but no official news about it. I heard there were plans at one stage but they were scrapped because season 3 wasn't very popular.