She explained, "The full account of the accident is this: yesterday we appeared on 'Super Junior's Kiss the Radio' and was doing a punishment. Hani was doing a dance as the punishment and I stood up to help her. While dancing behind her, I was hit by Hani's head and got hurt. I didn't get very hurt, so you don't have to worry. Thank you for your concern."
Ouch, looks pretty painful, though! Feel better soon.