In the year 2100, a full moon as scarlet as blood hung high in the sky, known as the "Blood Moon" in history. This sudden change in the world broke the peace of human civilization - animals around the world were horribly demonized, turning into huge and ferocious monsters, attacking human settlements like a tide. High-rise buildings collapsed, the earth cracked, the once prosperous cities became hunting grounds for monsters, and human civilization was on the verge of destruction.
Under this unprecedented crisis, humans have awakened the power of summoning magic cards hidden in their blood. People can seal the power of the slain monsters in magic cards, summon phantoms of monsters to fight together, and unlock stronger summoning forms through fusion and advanced magic cards. With this power, mankind gathered all the survivors and built survivor bases with tight barriers on the broken continent. Using flesh and blood and the power of magic cards as shields, they barely guarded the territory that one party relied on for survival. In the cracks of despair, the beacon of resistance was ignited.
