D-817 - Schoolgirls in Swimsuits & Bloomers

It's hard to compare them to modern actresses, but there aren't really any cute ones in this. The retro feel of the heavy mosaic adds a certain charm. The school swimsuit with a swim cap at the beginning is a look you rarely see these days. Similar actresses appear in other omnibus works, and while I'm not sure if these were originally standalone releases, the editing is sloppy, so I'd recommend watching it just for reference.