The eighteenth places, which will make the last members of Unit G and Unit B for the final, are announced. Another sad farewell comes and the new songs for the final stage are revealed to the remaining 36 idols. Each idol decides on the first to the third choice of whom they want to be teamed with as well as the song they want. The teams are formed based on their choices. As mini-missions, each team comes up with their own choreography and makes a short video.
