BTOB's Ilhoon revealed he's uncomfortable around A Pink's Na-Eun.

On the May 18th installment of 'TMI News', the two, same-aged idols featured as guests, and Ilhoon expressed the A Pink member he's most close to is Bomi. Bomi responded, "Ilhoon and I became friendly after we debuted," but the BTOB member said, "No, we were close before then."

However, when it came to Na-Eun, Ilhoon said, "I knew her since my third year of junior high in 2009. She's someone who always hides herself. She always seemed like an accomplished lady. She had the atmosphere of an accomplished lady from a noble household, so it was difficult to deal with her in a friendly way."

Na-Eun simply responded, "I thought you were comfortable around me."