GTO: Great Teacher Onizuka volume 12

So the class gears up for the trip to Okinawa - swim trunks unfurl, swimsuits cling and Onizuka gives his class the time of their lives...especially when he decides to make the rooms coed, much to the chagrin of...well, everyone. he shacks up Anko and her cronies with Noboru Yoshikawa, who is beset by the wicked coven of bitches. Urumi, in turn, bunks with a collection of Gundam geeks, who then salivate over the closest female thing they've encountered since the womb. But things really get stirred up when Kikuchi stumbles across a legend of hidden treasure...