Overal it was cute and I enoyed it. Didn't see the "plotwist" coming (and the mixed signals were a bit annoying, but it is resolved). There was a lot of blushing wich I find cute. Not big fan of the age difference, but the main character isn´t a minor and there isn't shown to be a power invalance or groming of any kind. It is spicy from the very begining and if I remember corectly it has a grasp on consent. The kid character (Hiroto) is really cute and I liked that even thogh he was a bit dramatic at some parts it didn't comeout as annoyng and it felt like a real kid.

About the artstyle, it was good, I liked the exagereted expresions in some panels. More than that the chibi versions in some panels and the expessions of Hiroto were really cute.