Well this was disappointing. Not a fan of first penetration scenes being hidden sex. Maybe the full first time scene for Yui gets added next update with fully visible sex, and not the hidden bad angle stuff. I hope so at least. Good buildup update though, mid writing unless it's a setup to expand upon it in next updates if we treat this update as Ryuu's feverish POV before the proper playbacks of her fall starts - so an intermission; but the big takeaway was that the sex scenes were underwhelming. Marin still has the best treatment so far in these aspects, even the mom was better. Ah well, one and a half months till next update I suppose.