Koji Kikkawa x UL・OS Collaboration Bungei Shunju Mini Booklet UL-OS Sample with Winning Certificate This is an UL・OS original booklet, officially recognized by Bungei Shunju, filled with Koji Kikkawa's interview and special content. Available for immediate purchase. Please understand that this item is stored by a private individual, so only those who can accept this condition are kindly requested to purchase. If you have any questions, please feel free to ask in the comments. Thank you very much.