[Machine Translation] The "Operation Key" is the key for "Akane" and her friends to wear the "Palette Suit". This important item "Operation Key" has been reproduced as an alloy accessory in the respective colors of "Akane", "Aoi", "Wakaba" and "Sunflower"! The shape of the key is carefully designed according to the setting, and the mark of "Isshiki Laboratory" is engraved on the back of the key. You can wear it around your neck or attach it to your keychain.