As Cool Crew train to dance in sync to music, Kanon worries that their dancing isn't 'cool' enough for some reason, deciding the first step to improve is to practice isolation (moving only a single part of your body at a time), which Haneru isn't too familiar with. Meanwhile, Yuzuru and Mizuki, having suspected that Kanon and Rhythm are the same person, pay a visit to her usual recording place and observe Haneru and Kanon's practice. The pair soon make themselves known and invite Haneru and Kanon to a tea-party, where they get to know about each other and their origins, before helping them learn isolation in a fun way.