The moons are scarlet and darkness falls. Civilization collapses and the world sinks.
The Light Meteor Realm was torn into pieces under the erosion of the "dark mist", and the last fire of mankind huddled in the huge "dome" fortress, lingering. The world's consciousness is dying, giving birth to the final system to fight the darkness: the armor summoner who controls energy with the physical body, and the card maker who weaves miracles with the spirit.
Li Hao, a soul from another world, fell into this desperate purgatory when he opened his eyes. She is powerless, fearful and timid, and her only wish is to hide. However, the world has given her the talent of [Card Maker] that requires the most cooperation with others. With the strange knowledge from Blue Star, the effect of the cards she made was incredible, but it also made her the focus of coveted by all forces.
Yan Yan, a cold armor summoner, is the sharpest blade in the darkness and the strongest shield in the dome. During a mission, he protected the girl who was trembling under the monster's claws behind him, but unexpectedly formed a mysterious [spiritual contract] with her.
Fearful of society, she was forced to stand under the light and draw hope for the whole world with trembling hands. Alone and arrogant, he learned to listen and communicate, and used his eternal flame to dispel the gloom in her future.
When the darkness boils again, ancient conspiracies surface, and the truth of the apocalypse is gradually revealed... They discover that the real power does not come from armor or cards, but from the heart.