where are people getting romantic development between sakurai and little fujisaki? they've only been friends this whole time, and there's an age gap. him getting with her would kill the wholesomeness of this manga, he's a dude who's entrusted with other people's kids and you want him to date a kid lol? they haven't said how old he is, but he has to be decently old if people his age already have kids in daycare.
though i do think fujisaki liking ryo feels out of nowhere so far, maybe they'll explain better in next chapter, like with a flashback or something