I started watching H!E for Kumirei and by the end of it I found myself obsessed with Asuka and Asukaori (there's not too much of their relationship but anyways). I was also overwhelmed by every other aspect of the anime and by the fact that there's more into its characters, even the side ones.
I really want a second season but I'm afraid my Kumirei headcanon will be destroyed, it was already bad enough having Reina crushing on Taki-sensei so I really don't wanna see something more between Kumiko and Shuuichi too which will probably happen if there's another season.