Yu Jae Suk reunites with the trot singer who gave her the name ”Yoo San Seul”... and even gives the members a new name? = ”What would you do if you were to take a photo?”

Yu Jae Suk reunited with trot singer Jin Sung, who was the teacher of the secondary character "Yoo San Seul". On the September 28th broadcast of MBC variety show "What Would You Do If You Were Filming?"
The members who were invited to the "World of Chorus" will be shown. The beginner members who formed the "Tora-nani Chorus Group" will learn chorus from senior members of professional chorus groups.
Meanwhile, a special guest arrives in the practice room. It's none other than Jin Sung, the "giant of the trot world" and the protagonist of the song the members had been practicing the chorus for.
Yu Jae Suk rushes over and politely greets him, saying, "This is my master. May I meet you?"
He then introduced her to the members as "the person who gave us the name Yoo San Seul."
Upon seeing his teacher, Yu Jae Suk was delighted and said, "A big star has come," and showed his joy with his arms folded. He then introduced the members, whom he was meeting for the first time, to Jin Sung.
With a warm smile like a neighborhood uncle, Jin Sung greets each member one by one, calling them by name, and presents them with unexpected new names (?
What will be the new name that Jin Sung will give him? You can see the details on "What Would You Do If You Were Filming?", which will be broadcast on the 28th on MBC in Korea.