Lin Mo, a veteran Yu-Gi-Oh card enthusiast, accidentally traveled through time and fell into the magnificent Yu-Gi-Oh multiverse. The awakened "Duel Mark" gives him a special ability - by winning a key duel or participating in a core event, he can copy the opponent's core cards and use them for his own use.
In order to return to reality, he must embark on the road of "infinite duel": starting from the thousand-year trial of the first generation Domino Town, challenging the three phantom gods of Yami Yugi, the elemental heroes of Yujo Judai, Fudo Yusei's synchronic bond, Kujiu Yuma's super starlight, Sakaki Yuya's dimensional fusion, Fujiki Yusaku's network storm, until the cosmic duel between Yuga Yuga's super speed and Yuhi Yuhi.
Every time he enters a new Yu-Gi-Oh! World, Lin Mo needs to master new summoning rules (fusion, synchronization, super, pendulum, connection, etc.). In the process of fighting against protagonists of various generations and joining forces to fight against villains such as Dark Tapiron, Yubel, the Seven Emperors of Balian, Hanno Knight, etc., He constantly expands his deck and integrates the duel wisdom of the multiverse.
After collecting the "ace marks" of all the worlds, Lin Mo finally revealed the truth about time travel - the world of Yu-Gi-Oh is actually the screening ground for the "God of Duel". In the end, he used the "Infinite Duelist Card Set" that included the entire series of core cards to engage in the ultimate duel with the God of Duel in the place where duel originated. He used his belief in dueling across dimensions to write his own ace legend, and also found a way back to reality.