On the August 31 airing of 'Happy Together 3', Yerin shared she struggled with the extremely difficult dance for ''Love Whisper''. She showed some of the moves to the song on the spot to prove her point. 

After watching her dance, Taemin showed understanding and commented, "It might look easy but a lot of techniques were used. For example, there was Neck-O-Flex, which is when the upper body and the leg go opposite. There were also a lot of steps."

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On the other hand, Kai commented, "Well, we do male choreography, and honestly, it didn't seem that difficult..." Yerin responded, "Hul, it's really hard but many people go, 'It seems easier than your previous choreography'."