On the April 20th episode of SBS' 'Healing Camp', it was time for the MCs, including Sung Yuri to have their own 'healing time', and she went on vacation with Jung Ryeo Won. Sung Yuri talked about back in the day when her group Fin.K.L faced an anti-fan of theirs.

She said, "We took revenge. Outside our beauty salon, someone said they were a fan and gave us a present. But our eyes were scratched off in the photo, and there was a letter. Our emotions were already piled up then, and we turned the car around. We said, 'The person who gave the fan letter? Get in,' and we took the person in the van with us."

Sung Yuri said, "Us four members asked the person, 'Why did you do it?' 'Where's your school?', and then we called their homeroom teacher on the phone and asked, 'Teacher, which student did this kind of thing?' But a few years later, a stylist asked us, 'By any chance, a long time ago when you were in Fin.K.L, did you take a person into your van?' That person happened to be an acquaintance of the stylist. The person asked the stylist to tell us that they were very sorry. We also apologized."

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