I think...I like the idea of a poly relationship, but at the same time I feel unsatisfied with the ending. I know it was probably a forced rush job, but I also don't feel like this is a strong and solid polyamory relationship. Akira just seems to go with it and a part of me still doesn't really like her. I'm sure that's the real reason I don't like this ending; I just naturally like Rin and the younger girl together.  I'm sure I'd be cool with all of them together; if I felt the three of them all equally liked each other. Doesn't the three-way relationship fail if you don't? 
But this is also the ending I assumed from the first chapter we'd get. I guess, it just needed to be fleshed out for my taste.  I appreciate we at least got an ending and it just didn't disappear all of a sudden.
Thank you, for everyone's hard work that made this translation possible. :)