This is a prize from the "Signed Goods Present Campaign" that was only open to those who purchased the Hulu streaming ticket for "Kenshi Suda LIVE 2022 'Hirusou Yamu'." This is a very valuable item, with only 5 winners. The size is M. It has been stored in a dark place after being obtained. I don't think there are any problems, but please refrain from purchasing if you are nervous, as it is stored by a private individual.