Please rest assured that this is an authentic product purchased from the Okokuya online store. The serial number is an IC chip. The item will be shipped as the main body only, without any accessories. There are some signs of use, such as partial cracks on the surface lines, scuffs on the corners, and damage due to deterioration. There are no damages that would interfere with daily use, such as a broken zipper, so I believe you can still use it for a long time. However, please consider purchasing after understanding the condition.