For a long time, the Elf Kingdom has been guarding the Life Source Gem, which is crucial to the survival of humanity. However, the evil Dark Elves, coveting the gem's immense power, summoned a terrifying demon and seized the Elf Kingdom. Just as the gem was about to fall into the wrong hands, the brave and tenacious Elf Prince Kaka, with the help of the Elf Princess Nuoya, escaped to the human world with the gem. By chance, he met Charlie, the king of the Stationery Kingdom, and Kaida, the leader of the toy forces. Although fierce conflicts often arise between Charlie's stationery subjects and Kaida's toy army, they share the same wish: for their young master to grow up healthy and happy. Kaka's arrival entrusts Charlie and Kaida with the formidable task of saving the Earth and defending peace.