Felix revealed the story behind his real name, "Lee Yong-bok." On the 24th episode of tvN variety show "You Quiz on the Block," Felix disclosed that his Korean name is "Lee Yong-bok." He explained that the name was given by his grandfather and means "the scent of a dragon." Felix said, "After I got the name, my mother cried for six months."

Yoo Jae-suk mentioned Felix's siblings and asked, "Your older sister is Jisoo, your younger sibling is Jimin, but only Felix has the name Yong-bok. How did you feel about that?" Felix replied, "When I lived in Australia, I liked the name Lee Yong-bok. When I came to Korea as a trainee, the company said, 'Yong-bok is not as common as you think. Let's just keep using Felix.'" He added, "One of the members found the name Lee Yong-bok on a medicine packet. He held up the packet in front of many trainees and asked, 'Who is Lee Yong-bok?' and it caused a big commotion."

Yoo Jae-suk praised, "The name Yong-bok feels very friendly. Even as Yong-bok, it's cool." Felix also talked about Stray Kids' activities. They set records by entering the Billboard 200 main album chart at number one seven consecutive times with their fourth full album "KARMA" and eight consecutive times with SKZ IT TAPE "DO IT."

Yoo Jae-suk said, "Our JYP hyung gave each member a commemorative plaque with 20 don of pure gold," and marveled, "One don of gold is 700,000 won, so that's 14 million won per person." Felix recalled, "While we were all eating together, PD Park Jin-young said, 'I want to give you a gift,' and gave gold to each member one by one." Yoo Jae-suk joked, "They definitely deserve 20 don. Even 20 don is small. We could give them more." When asked, "Where is the 20 don now?" Felix answered, "It's just next to my closet in my room," causing laughter.

Stray Kids, which Felix belongs to, won the grand prize at the "2025 MAMA Awards" held last month at Hong Kong Kai Tak Stadium. Felix was even captured crying at that time. He said, "When I heard that all the members received the award together, I thought, 'We finally got this award.' As I headed to the stage, I remembered watching MAMA in front of the TV while living in the dorm, eating chicken, and often talking about whether we could ever win the grand prize. Those memories came back. The tears were from happiness. We all kept crying that day," he recalled.

Felix also revealed the grueling schedule during his trainee days. He said, "We practiced as a group from 10 a.m. to 10 p.m., then practiced individually from 10 p.m. to 5 a.m. After a little sleep, we went back to work at 10 a.m. It was to the point of shedding blood, sweat, and tears." Felix's story clearly shows the path he has walked and the success of Stray Kids.