Red Velvet appeared on SBS radio program 'Kim Chang Ryul's Old School' on March 30 and talked about the addition of Yeri as a fifth member.

When Yeri was asked if it were hard joining the group later on, she replied, "There was no particular hardship to overcome as a member of Red Velvet," but continued, "Because I'm still a student, if I go to school, my friends react with, 'Huh?  It's Yeri,' which is awkward."

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As Joy used to be the maknae before Yeri, she was also asked a question: "Your position as maknae was taken away with the addition of Yeri.  Is there an aspect that makes you sad about that?"

Joy replied, "I am not upset.  It is true that I'm not the maknae, but I also feel more responsibility because I'm no longer a minor.  As my affection for the team also grew, I can do anything for the team."

Kim Chang Ryul asked, "Then can you ruin your image if you need to ruin your image as a promise for winning first place?"  She simply said, "It's already ruined.  When we made a comeback, on the broadcasted 'Ice Cream TV,' we did this thing where everyone makes an ugly face, but I thought that everybody was too pretty to ruin their image, so I just ruined my own.  The capture from that scene was shown here and there."