Tianhai City and millions of its citizens are transported to a card-based world facing an apocalyptic crisis. This is a world of cards, where becoming a Card Master allows wielding magical cards: Summoning Cards, Skill Cards, Equipment Cards, Magic Cards, Item Cards, and more. Each person receives an initial card upon arrival, crucial for survival in this dangerous world. Chen Mu, who witnessed Tianhai City's destruction in his past life, is reborn at the moment of the transport. Awakening his card fusion ability, he's determined to prevent the tragedy and protect Tianhai City. His ability to fuse cards allows him to create miracles, transforming ordinary cards into extraordinary ones. [Summoning Card * Barbarian Warrior] + [Equipment Card * Blood Drinking Sword] = [Summoning Card * Undead Barbarian King]. [Summoning Card * Winged Serpent...]