Good to see that Mitsuki has finally gotten fully over Haruka and Rina now has the perfect chance. Haruka and Yuu getting interrupted was pretty funny though and even after the last one, it's still incredible to actually see them do that.
These post-ending doujins are so satisfying and make me really happy. Now I just want more and also wish more mangas would do this. So many underwhelming endings could be greatly improved with this.