Suichu Niso Plus ups the “underwater girls + knee-high socks” content over the last book. New additions include mecha (knee-high socks for use underwater), rabbit ears, octopus tentacles and other standards as well as umbrellas underwater, raincoats, swim rings, water guns and other items out of left field. The new mecha (knee-high socks for use underwater) were designed and produced by Naoki, mecha designer on Gundam Build Fighters Try which will begin broadcasting in October, to resemble blue-ringed octopus, and they were created as a collaboration with figure maker Kaiyodo, which recently turned 50.