I'll say here what I said elsewhere: if it wasn't Rui it would be another girl. The dreamy romantics crowd will hate this post but deep down most of you know a good looking guy or gal with options is not going to willingly spend their youth single because of a promise. Call me jaded but I wouldn't hold my breathe waiting for a guy for years and expect him not to date other ppl in the meantime.
you mean HIna? right.. I actually thought is him and Hina will end up together because Rui like the MC a lot and she has a lot of advantages to be with him but Hina has zero.. And the last chapter he keep blushing and thinking about RUi... To tell you the truth I would like HIna and the MC to end up together too..
Also, for some reason a lot of people didn't want them to end up together..I don't see anything wrong with that...
I honestly wanted the teacher and main guy to end up together, simply because Rui is too good for the main guy. *sigh* Though it's highly likely Rui and him will end up together.