During the September 6 airing of KBS Cool FM's 'Moon Hee Jun's Music Show', a listener sent in a question, asking, "If you had a younger sister, which member would you introduce her to?"

Renjun answered, "The members I want to introduce the most are Jaemin and Mark. They are really sweet, responsible, and full of love."

On the other hand, Renjun picked Haechan as the member he would never introduce to his younger sister. He explained, "Haechan jokes around too much." Renjun brought laughter as he said in a serious tone, "Please stop kissing me on my neck."