Themed keyboards typically come with matching packaging, and the Akko x Gudetama 5108S keyboard is no different. The product box uses a two-piece packaging with an external sleeve that embraces the Gudetama colors and design fully, to where there is no doubt as to what keyboard is inside. Indeed, it's not often that the licensed IP gets full coverage here with Akko's own branding relegated to the sides, where we also see more information about the actual switch used here. Slide out the inner box to reveal a similar black box with purple Akko logo on the front as with previously covered Akko products.
There are side flaps and double flaps in the middle opening which reveals a foam sheet and the keyboard underneath with more foam around it for added protection. There is also a thin foam wrap around the keyboard to keep it dust-free out of the box, and a hard plastic cover which can double up as a dust cover when the keyboard is not in use. Akko also includes a multi-language user manual here (online copy here) which I recommend going over to know about the various pre-programmed functions and customization options available. The rest of the accessories come inside another cardboard box, as seen above.
Akko goes further down the theme route with a color-matched keyboard cable too going from USB Type-A on the PC side to Type-C on the keyboard side. We also get a nice metal wire-style keycap puller, as well as a separate metal prong switch remover tool, indicating the keyboard supports hot-swappable switches. Rounding off the accessories is a set of seven replacement novelty keycaps in the 1u size that have the Gudetama character in various states of not wanting to do anything based on the day of the week starting from Monday and ending in a sleepy Sunday. These are thick PBT keycaps (average wall thickness 1.35 mm) with dye-sublimed legends/designs for added longevity. The use of black lines on the white base to mimic egg whites is a clever touch, given the limitations of dye sublimation where you can only have darker colors on a lighter base.