Boys II Planet Episode 4

After the first Class Placement Match is over, the second match begins again with the Signal Song Test. Before the test, the participants learn the signal song and its choreography through group training. As a special Master, Zhang Hao of ZEROBASEONE shows up and encourages the participants. After the endless practice, their classes change once again. Some participants move up to a higher class, while others drop down or even become a No Star Candidate. Which participants will successfully pull off the signal song and impress the Masters and Star-creators? (Source: Viu)