A mini-agency springs up to launch Jung-seok as a rookie singer. To test his potential, a surprise evaluation session is set—but the judges are tough!

After a shaky start, Jung-seok invites music sensation and old friend IU to his studio for her honest opinion — can he really pull this off?

Jung-seok hesitates when IU advises him to rap. Unsure if he can do it, his team seeks Dynamicduo's guidance. Later, his secret YouTube channel soars.

"The 99s" gather at Jung-seok's studio for a listening party. Disheartened by their feedback, he walks out in frustration. Can it really be that bad?

With 50 days left, Jung-seok calls for help. The music gods answer: Park Hyo-shin, Kim Ea-na, and his wife, Gummy, step in to refine his work.

Jung-seok can't believe his luck as his star-studded network rallies behind his music video, with Kong Hyo-jin as the lead and Jung Kyung-ho directing.

His stage debut is near, but Jung-seok faces a nervous setback — he can't rap. Now, it's up to Dynamicduo to coach him into hip-hop shape.

With the guitar slung over his shoulder, Cho Jung-seok is ready for his first on-stage performance as a singer. Will he win over the crowd?