I haven't seen such good Lingerie fetish based doujin since Saranaru Takami.
The only thing is that In the Cover, the short haired girl has at least twice the boob size from the other 2, while on the doujin she doesn't even look like the girl with the biggest breasts nor gets the paizuri scene, however this is just nitpicking and doesn't change for me the fact that this doujin is just amazing.