It's the ocean!Sure!Yaaay!I got it!Okay then, you can do what you'd like until lunch.A Sand Carrier!?
That's too awesome!!Shall I help you?Y-You're!Kaga-san!!We're at the beach!Souryuu, let's hurry and make a sand castle!The Kaga-san who can't straight-forwardly say "Let me join too".
The Kaga-san who, in order to be seen as a excellent Onee-san, went a bit too far.