Fairy Tail: Ark Of Dragons

400 years ago, a war raged, between a powerful race of creatures, between those who want to live in harmony with humanity and against those who defied them. During the war, a Dragon collected the power of every known dragon so that he may preserve their power and made a relic to store the power. He then sealed it into his adopted son, who he sealed away for safekeeping purposes, only for the son to wake up, 400 years later