I honestly enjoy the romantic developments that occur throughout the manga, especially the fact that it doesn't take for-fucking-ever for the main couple to get together. What I really like is that they go beyond the "hand holding" trope so commonly featured in other shounen romance manga, i.e. dates that actually lead to things, multiple kiss moments between the main couple, proposal, pregnancy (though the path to pregnancy is unique due to the nature of this manga). I also believe the main "harem" was handled great, since it really delved deep into their feelings and used it as a way to progress the story and the characters. Though it is kind of annoying to hear Mikan declaring her love for Asahi all the damn time.