This is a mug I bought at the Fantasia Bunko Grand Thanksgiving Festival 2018. After purchasing it, I thought it was a waste to use, so I kept it in storage without using it. It has never been used, and I only opened it to check the contents. Therefore, there is a gap in the box it came in, which was created when I opened it. Also, as shown in the fourth photo, the edge of the bottom has discolored, but it is not expected to cause any problems when using it. Please let me know in the comments if you have any questions. # "Ore ga Suki nano wa Imouto dakedo Imouto ja Nai" (The thing I like is my little sister, but she's not my little sister)