Once drunk, the protagonist travels back to ten years ago, with the same characters and the same streets, but this world is completely different from the protagonist's world.
In the catastrophe of the world a hundred years ago, many monsters, demons, orcs, and strange creatures suddenly appeared on Blue Mercury, massacring all life on Blue Mercury. Humanity was wiped out. At that time, the self-protection mechanism of the planet was activated, which enabled humans to awaken the power called magic cards. By sealing monsters and turning them into cards, they can gain the power to drive them. Human civilization has opened a new chapter.
Let's see how Su Qi, who owns the FGO Heroic Spirit card system, shines in this card-first world.
