I bought the official version, and so far, they’re not living in Japan, they’re living in Punland!
@darknesspker, there is no commitment in any way, Kurusu is basically the ultimate virgin. He won’t touch any of them, and even with the question of marriage and it’s possibility and strong incitation to [marriage] coming quite soon in the series, there is still little to no progress, and if you think about the intentions of Okayado when creating the main character, it’s not really surprising. I just hope he won’t do something like in The Quintessential Quintuplets or BOKUBEN. I personally want him to end with Rachnera, but there’s no indication for him to choose any of them at the moment.
With all that said, it’s still a great manga (and anime). In fact, you could say it changed my life, being the manga that made me crave and love manga for real. It is, of course, only my opinion.