Shopping with friends (or better, without, and meeting up afterwards), creating manga together without breaking the friendship, planning a class Christmas party without letting each other down: the kiddos experience many new things and learn important lessons about consideration for others and responsibility and being honest about their feelings. The usual silliness, a few surprises, and a shocker or two fill things out along the way.
No one will ever be able to accuse Yoshinaga of playing it safe and predictable, that's for sure. My goodness. I love how she knits together all these little plots and plans with one another and with telling snippets and moments that add depth and seriousness and character development. You laugh hysterically one minute and then your eyes pop out of your head the next and then you want to scoop everybody up for a comforting hug the next after that.