Those girls couldn't catch a break, uh... Can't say I like the ending or even can see it as "happy" in any way. Sure, they're still together, have renewed... Well, I want to say determination but it feels more like they resigned themselves to living a crappy life full of hardship in Tokyo.
Realistic, sure, but if I want to be reminded how crappy life can be, I just need to get out and open my eyes. I read mangas for a bit of escapism. ><
Chapter title feels like a lie as well, should have been "back to where we began".
At this point, tbh, I'd rather have them living and working appart for a couple years, then go back together on the island to live there a much more relaxed life. Would have made for a more satisfying ending than this one.