Sister's Slam Dunk - Season 2 Episode 7
Overview: 1 vs. 1 speed lesson with vocal trainer, Jang Jinyoung. He picks and solves all the members problem at once! Hong Jinkyung becomes the dance centre from being in last place! The choreographers only had one week to choreograph and the dance is finally revealed! The dance ranking over turns, who became the first and the last place?