Deep in the mountains, ancient tombs lie hidden beneath layers of mysterious markings. Descendants of the Vein Guardians follow incomplete ancient texts and embark on a perilous journey to uncover clues, unraveling one thousand-year-old mystery after another surrounding the Vein Guardians. Mysterious mechanisms, strange occult arts, and the secret histories of ancient clans emerge one after another. Caught between life and death, the group must hold fast to their principles while uncovering the unknown past of the Vein Guardians. This is an original AI-animated drama.