On the April 12 airing of 'Radio Star', Han Eun Jung revealed that she struggled greatly due to a stalker in the past. She explained, "That person troubled me a lot. He even leaked my personal information. He came by my house and would look for me at night, which was very difficult for me. So I met him in person and asked him to stop but he didn't listen. A manager then spoke up and said he'll end this. But the stalker responded more aggressively and threatened to cut off all the managers achilles tendons."
Han Eun Jung brought laughter as she revealed, "So the next day all the managers showed up wearing hiking boots."