There is no deep drama, is no big exploration of their past or a bigger plot, and only very few relevant side-characters. There isn't even any big build-up to their relationship. If anything, the main characters seem rather 'generic' in some aspects, so some might complain about them being flat. But in my opinion, they make up for that in wholesomeness.
So, if you are looking for some enticing and original plot, look further, but if you want some simple and straight-forward fluff, then this is perfect for you.
