Recently, netizens claimed that they've found an ID on a second-hand buy and sell website that matches with the ID Youngdoo uses online. It was also claimed that the idol sold expensive shoes and earrings he received from fans on this website. Fans then demanded an explanation from Youngdoo.�

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On June 27, Youngdoo admitted to selling the gifts and apologized via BOYS24's official fan cafe.

Youngdoo stated,

"First, I want to apologize to all associates of BOYS24 for creating a controversy. I want to reveal the truth and ask for your giveness regarding the issue. I sold the shoes because it was the same model of the one I already have. I have preciously kept the other one that a fan gifted me several days ago. The earring is indeed a gift from a fan. I didn't think enough. I'm sincerely reflecting on my actions. If given an opportunity, I want to meet the fans who gave me these gifts and apologize. I'm afraid of how this incident will harm my image and make me look immature to my fans but I believe it's something that I have to endure as I have disappointed many. I know wanting forgiveness immediately is too much. I just want to sincerely apologize for hurting the feelings of our fans who've always purely trusted and stood by me Yoo Youngdoo and BOYS24."