Once In A While, it does not need to escalate to become a "threesome" or "group" situation ... especially as it seems that Midori's boldness was fueled by alcohol more than anything else.
Good Luck working out your relationship ... Akari-chan, Hisashi-kun.
I almost felt a bit bad for him when she so loudly proclaimed that they weren't going out, but considering what happened afterwards, he's definitely still a lucky guy. Also, "How am I supposed to choose"? Well...You don't. You just take them both.
Great ending though. Wait, so she really was drunk? I admit that was quite surprising, I thought that was just how she really is, considering what she did with her friend's phone. She is quite the wingman though, helping bring them together by that end.
Good Luck working out your relationship ... Akari-chan, Hisashi-kun.