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...
What if Chen catches a cold?!But it's an opportunity to raise their friendship power.Awww...Hmm..."I Don't Believe It, Chen!"ShooockChen! You mustn't go!I can't leave Cirno-chan alone!I'm sorry, Ran-sama.I want to do whatever I can!Huh...?