It all started with one weird but funny premise: a five-year old Kotaro lives alone in an apartment. The beginning of the series gives you all the fun and cute scenes, but wait until you learn more about Kotaro and why he lives alone.

I really enjoyed this series because of its heartwarming story and its main takeaway: rather than Kotaro should thank the adults around him to take care of him, but I believe the end of the story offers the other way – the adults should thank for Kotaro's presence and innocent view of the world that slaps all the adults hard, really hard.

For me, the story slaps the audience, too – in the world that we have where everyone were facing their own struggles and problems (and those adults in the series are no exception), should we take a little time to think different or take from a children's point of view?

Each of the adult around Kotaro are explored on each episode differently, on how they used to face adulting and how Kotaro changes them the better. It's just... really nice. And I can't stop crying watching this twice already.