This is an official T-shirt with a handwritten name by Kokona Setoguchi, who won it in the third part of the 7.5th-anniversary event of the Nogizaka46 Rhythm Festival. A certificate (photo 4) is also included. Photo 3 is a screenshot of the T-shirt being introduced at the Nogizaka46 official shop, which was sold at the 6th generation's first performance held on April 6th. Nogi Fes Kokona Setoguchi