Informative Review. This is the very end of Candy Boy, at least, in terms of the content it has to offer. This special revolves around the main four characters in some fanservice episode, which happens to also be a pool episode, where the pool is indoors on a snowy winter day. The episode didn't have a lot of fanservice and it more so incited talks about memories reloving around the pool for particularly Kanade and Yukino. It was nothing special but it did its bit with Sakuya funny moments if you want that on the side. The audiovisuals are the same as usual, only not used totheir full extent as the main series because of length and what have you.
I'd say watch it if you were a fan of the series, but don't expect too much out of this one. It doesn't have the entire original charm of the main series but it does well as a part of the Candy Boy series.