Sgt. Frog Blister Charm Collection Gachapon: Kururu Sergeant Sgt. Frog Mascot & Gum! Kururu Sergeant Kururu Sergeant (Clear Ver.) Set of 3 Instant purchase available, ships today. Please note that this item has been handled by people, although it is new and unused. The price is set based on market value. Feel free to comment if you have any requests.