Sister's Slam Dunk

Episode 11 (2x11)

Air date: Apr 21, 2017

The members are being evaluated on their choreography progress before tuning it according to their vocal parts. The stylist, Choi Hee-sun, visits the show and reveal prototype version of their stage attire. Afterward, they begin the second recording session for "Right?", when it is decided that Kim Sook and Kang Ye-won are switching their vocal parts.