Foreign organizations are currently laying siege to the Akatsuki Special Ward, leaving civilians trapped in a dangerous war zone driven by greed and violence. To restore order and bring peace back to their community, divine-tattooed vigilantes known as Scard emerged, with Eiji Arashiba emerging as the Hero of Akatsuki for his role in keeping hostile parties at bay. While in battle with the Dusk mafia syndicate, Eiji meets Yamato Kai, a brave young boy who saves his life but ends up getting injured. To save Yamato, Eiji gifts him with his powerful tattoo, making him responsible for protecting the Akatsuki Special Ward while Eiji resigns himself to a different sort of heroism - sacrifice. As the conflict rages on and threatens to consume everything in its path, Yamato finds himself thrown into the deep end as he tries to master his new Scard abilities and protect his loved ones from danger. His task seems insurmountable, and adversity lurks around every corner - will he be able to step up and become the new Hero of Akatsuki, or will the challenge be too great to bear?