Give me my high school sequel you cowards.
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It does kind of feel like a lot of the more personal plot threads are just going to be left unresolved, which from a writing perspective makes sense, they're 14, Kyo shouldn't be able to magically figure out how to deal with stuff that adult spouses to professional actors and actresses have struggled to deal with, and it makes sense to frame the story as a snapshot of their life instead of wrapping everything up in a bow.
From a reading standpoint though, it does leave the desire for more. Which idk, maybe that's her plan to rage bait everyone into getting her a sequel. Relative to the rest of her work it's kind of wild how randomly she knocked this series out of the park, and as a creative I could see not knowing if you have another bullet in your chamber, and wanting to string what's working for as long as possible