A children's manga based on the best-selling mobile game, Puzzle & Dragons. It takes place in a world where humans and dragons coexist, and where people known as dragon tamers are revered by everyone. Dragon tamers protect the peace by using dragons to protect civilians from monsters and other threats. They do this by manipulating elemental energy-containing objects called "drops," which, when assembled in sets, release energy and allow the tamer's dragons to become more powerful. It tells the story of a headstrong boy named Zet as he endeavors to become a great dragon tamer.