On the 25th, JTBC variety show "Knowing Bros" featured the full lineup of "Shortbox" with Kim Won-hoon, Jo Jin-se, and Eom Ji-yoon appearing. During the broadcast, Shin Dong asked why Kim Won-hoon took on the role of the boyfriend. He mentioned, "Why did Won-hoon play the boyfriend? I heard he's married."

Eom Ji-yoon spoke about the chemistry with Kim Won-hoon, saying they looked like a real couple in the "Long-term Relationship" content. Jo Jin-se confessed, "Actually, we argued over who would take the roles. Neither of us wanted to do it." In response, Eom Ji-yoon said, "I wasn't even cast because of my looks, and the boyfriend... do I smell or something?"

Kim Won-hoon explained the role selection process. He said, "When it comes to 'Long-term Relationship,' it's uncomfortable for seniors and juniors to act as a couple. So we kept pushing it off, saying, 'You suit it better.' Eventually, Ji-yoon went home, and I lost at rock-paper-scissors. So I took the role." Jo Jin-se added, "Looking back now, it suits perfectly. I'm also doing the 'real siblings' act with Ji-yoon. I think it worked out well."

Min Kyung-hoon asked Eom Ji-yoon, "Ji-yoon must have a style. Between the two, who fits your taste better?" Eom Ji-yoon retorted, "Why choose between two?" and revealed, "If both were single, the boyfriend and the husband would be different. The boyfriend is Kim Won-hoon, and the husband is Jo Jin-se." She explained, "The more you get to know Won-hoon, the more charming he is. Like beef bone soup. He's charming."

Seo Jang-hoon said, "I get the feeling. Jin-se is not stimulating but comfortable and stable." Eom Ji-yoon added, "Jo Jin-se is just as he appears, but Won-hoon is different the more you get to know him."

Kim Won-hoon said, "There's one thing I want to say: I've never been dumped. So when I hear Kyung-hoon's breakup songs, I don't feel the emotions." He joked, "People can't seem to get over me when they meet me."

Lee Soo-geun asked, "Have you ever been mistaken for a couple? The Enjoy Couple friends got married, right?" Eom Ji-yoon revealed that they had actually been misunderstood. She confessed, "Many people don't know Won-hoon is married. He's with a non-celebrity, so it's not public. People think I'm the one who's married. Some even congratulate me on my wedding."

Eom Ji-yoon said, "When I went to match wedding dresses with Won-hoon, some thought it was vlog content. Some people think it's made that way." This statement drew great attention from the cast and viewers.