Kairi was just a normal girl (who just happened to be a princess of heart and a keyblade weldier) living out her life with her friends, Sora, and Riku until one day while waiting for the bus home from school encounters the infamous TF2 freak known as Painis Cupcake who at first attempts to eat Kairi (as he believes he can weld a keyblade if he consumes another weldier), during each attempt he fails. However he saves Kairi when a robot from the Gray Gravel Co. attempts to kidnap Kairi and almost succeeds until Painis saves her with his Self-Übercharge and the two become involved in far deeper and darker plot.