CETD-022 - Wife getting railed from behind right next to her sleeping husband, and the husband joins in?

Azumi Koi is officially 21, so why is this DVD categorized as 'mature woman'? I guess DMM thinks anyone over 20 is a mature woman (lol). Anyway, this studio feels a bit half-baked, like they don't know if they want to be 'Madonna' or 'Tameike Goro'. They cast good actresses, but nothing sticks—maybe the scripts for their dramas or mockumentaries just lack a twist? If you want to see her anal work right now, WANZ's 'No Mosaic Anal FUCK' is much more raw.