[Arturia Polaris]

Can I say something?

I believe that Mori Summer is going easy on the physical battles with Deko. When she's trying to have her drink the milk, she tries to force it to her on even terms, then when Yuuta tells her to turn around, she quickly gets pissed off and raises her from the twintails completely tilting the scale.

Same when Deko comes in the room to be ambushed by Mori Summer. They have a small sparring match till MS gets annoyed and quickly finishes it.

Either she's enjoying herself too much with Deko, or actually wants to prove to herself that she's better than her by fighting at her level.

Or she's just a tsundere.

Arty