On the 7th, Lee Seong-hoon mentioned his relationship with Choi Mina-su on MBC's "The Manager." Lee Seong-hoon revealed that he still maintains a good relationship with the members of "Solo Hell 5." He emphasized that his relationship with Choi Mina-su is purely friendly, saying, "We have been like friends since the show ended." He also explained that it is difficult to meet because Choi Mina-su lives in Chicago. Lee Seong-hoon addressed the recent photo with another woman that became a topic of discussion, stating, "She was someone I was getting to know, but the photo was taken," clarifying that they are not in a romantic relationship.

Lee Seong-hoon also explained his profession on the show. He introduced himself as a quant trainer and former engineer at Google headquarters, describing himself as "a highly skilled numerical calculation expert who predicts systems that respond to stock price changes in 0.0001 seconds." He shared his busy schedule of returning to the U.S. on Mondays and leaving on weekends, explaining that his job has trading restrictions. He said, "I mainly invest in the U.S., cryptocurrency, and the Chinese market," and when asked about his returns, he replied, "It's in the red."

Jun Hyun-moo asked about Lee Seong-hoon's annual salary, saying, "I heard the maximum annual salary is about 3 trillion won. Is your salary around 1 trillion won?" Lee Seong-hoon responded, "If it were 1 trillion won, I wouldn't be here. I would be too busy to have this time." He added that salaries in specialized fields can be very high.

Lee Seong-hoon also reflected on his past during the broadcast. He said he was not popular at the beginning of "Solo Hell 5" and was not popular during his school days either. He explained, "I wasn't very popular when I was young either. I only studied and met people who liked that model student style."

Regarding Choi Mina-su, he revealed the reason for his affection, saying, "From the first meeting when she wore a yellow dress, she caught my eye. She had the aura of Miss Astar." When Jun Hyun-moo asked if Lee Seong-hoon's mother liked Choi Mina-su, he responded positively, saying, "I think she likes her very much."

Lee Seong-hoon also revealed his luxurious Han River view house in Korea. His home attracted attention for its elegant interior and stunning view. Through the broadcast, Lee Seong-hoon shared various stories about his profession and personal life, capturing the interest of viewers.