Act 22: Ami in the Hands of the Enemy (亜美ちゃんが敵のてに…　/ Amichan ga Teki no Te ni...)

9:38 Overly-Familiar

This is because "Ami-chan" is very informal and the default term would be "Mizuno-san".

13:27 Pincer movement

A manoeuvre where the enemy is attacked on both sides.