I like how it is a "silent" manga, meaning it has no dialogue and easy to read based on the visual storytelling. This meant that this was an easy purchase from a used manga shop in the original Japanese tankobon release, which I like because Japan produces the best books.
As for the story, funny slice of life stories, each chapter an episodic one and done. Trigger warning for those who don't like their ecchi, because it serves a lot that. Recommended for those looking for a quick and light read without any commitment to a long running story. Though this is a Prison School spin off, you don't need to read the main work to enjoy this. This can stand on its own merits.