In short: LIFE LESSONS!!
Don't worry, it's not as boring as it sounds. This anime definitely provides some great life lessons we can follow, and delivered in a beautifully meaningful and balanced way. It never seems like the lecture on life ever overshadows the episode or the plot, but we come away with a basic understanding anyway and a satisfied mind.
The comic timing was perfect, and as a character, protagonist was stop-notch, even if he was generic-ish. every single character had their own little complicacies and back stories and it was so much fun to watch. I absolutely adored the way they showed a grown up trying to fit into a high school and take and interest in their lives.
Sub plots were superb!! they had be squealing in delight or groaning in embarrassment or laughing out loud! <3 Music was on point, and i really liked that there were different EDs every time.
It's a refreshing concept and not too far-fetched, so we are allowed to actually believe what we're being shown. I definitely want to see more of this anime.