Yugioh 5ds Signers Marks
The Signers are the only group that can summon the legendary Crimson Dragon , the embodiment of the red star. There are six people in the world that have the Mark of the Dragon and Signer Dragons that fit into the legend. Each birthmark represents a part of the Crimson Dragon, as these marks themselves are actually broken pieces of the Crimson Dragon itself, that later were divided into six parts. Thus engraved and sealed into six people called "Signers".