I think you’d enjoy it sometime!! (The anime does unfortunately make the senpai she has a crush on look waaaay too old for her, but he’s supposed to be just a year older, they don’t become a couple, though). The boy who likes her looks the same age and they both bicker like very typical kids, they’re endearing.
I've never heard of it before but will definitely check it out! Thank you for the suggestion!
This sounds a lot like the KonMari method! ^^