point taken, as I'm not an expert in Japanese culture and their demographics and things.
In the philippines this kind of romance wouldn't be unusual, since a lot in this country is still highly conservative (given that the dominant religion is Roman Catholic).
Well their culture definitely is more conservative regarding some things (like love) but they do share some things with other industrial nations. It's definitely more believable than what it would be in other western nations.
Shoujo's tend to be a tad bit too romantic anyway but I think KnT is doing it in an acceptable way