I am one of the first to admit that the 'Sono Hanabira...' eroge series is fairly average, but I will also say that this kind of thing translates really well into the anime realm, given the kind of garbage that was being animated in the 2010s and will likely continue being animated. They also chose to adapt one of my favourite couples from the eroge series into this OVA as well; Mai being a level-headed, larger-breasted girl who balances out the petite and shy tsundere Reo.
The sex in this show is light, fluffy and loving; the perfect yuri execution. The way Mai lusts for Reo and takes control of her shy girlfriend is enticing, and naturally, Reo when given time is also forthcoming with love-making. This OVA is slow-paced and in my view, it really gives you the most out of the 20 minute run time. The art could be slightly more detailed, but it's still well drawn and the animation is perfectly fine. Overall, this is an absolutely essential watch for any H-anime fan, whether they like yuri or not.
