Oh no! Chen is becoming more independent! What do you do?

I'm guessing this can be interpreted as a dig towards overly protective parents?

Aww, Yukari.

What Ran doesn't realize is that if she keeps sheltering Chen like this, then she will grow up to be another Yukari.

That "Hmmm" at the second panel from chen is gold for me, it really shows how she's grown.

This chen definitely my fave aside of bkub's chen...