I would have liked it more if the mangaka did a better job at differentiating Yui-chan and Hiro.
I don't mind if she's an androgynous character, but when it makes it somewhat difficult to realize who's who something should be done.
Also, as much as it's great that the mangaka really pushed for consent when Kei-kun was drunk, it almost loses its meaning the moment Hiro pounces on him in the 2nd extra.
In the end, it just felt like that scene occurred in that manner for the sake of keeping this 'BL'-esque way of getting down to it and catering to those that like it that way :/
Akai Ito No Shikkou Yuuyo