You already sat through a beloved shoujo monolith getting turned into a gag machine, and now the disc hands you two more episodes nobody got to see on TV. That is the whole appeal. Glass no Kamen Desu ga started by recasting Maya Kitajima and Ayumi Himekawa as delinquents scrapping over who leads the Crimson Goddess gang, then Z threw the entire delinquent premise out, swapped directors, and just let the cast loose in whatever bit the writers found funny that week, including winks at the original manga and other famous works. These OVAs are the leftovers from that anything-goes stretch, aimed squarely at people who already know the joke. If you never read Suzue Miuchi's original, half of it will sail past you. If you did, you will be the one person in the room laughing, and you will not explain why.

Two unaired episodes of the Glass no Kamen Desu ga parody franchise, packaged with the DVD and Blu-ray releases of Glass no Kamen Desu ga and its follow-up Glass no Kamen Desu ga Z. The Z series set aside the first season's premise of Maya Kitajima and Ayumi Himekawa as rival delinquent girls. Instead it placed the cast in assorted comic situations, some of them nodding to the original manga and to other well-known works. These bonus episodes are a comedy, offered as extra content for viewers of the broadcast run.