In the bustling and futuristic city of Heartland, a young boy named Yuuma Tsukumo has a dream that everyone his age wants to achieve—earning the title of the greatest duelist! Sadly, due to his lackluster dueling skills, this dream is far from achievable. But when the school bully, Ryouga "Shark" Kamishiro, splits the key given to him by his father into two pieces, he inadvertently sets Yuuma on a collision course with his dream.
Retaining one half of the key, Yuuma begins a duel with Shark, but soon realizes that his inexperienced skills are no match for him. In a sudden turn of events, Yuuma's key repairs itself, and the "Door of Destiny'' appears before him. Using the key to open it, Yuuma is greeted by an alien by the name of Astral—a being only he can see.
The bewildered Yuuma soon learns that his memories have been divided into 100 "Number Cards," all of which he must retrieve. However, he is also not the only one looking for them. Bombarded by these revelations, Yuuma, alongside Astral, must defend the world from the upcoming threats that loom over Heartland City—regardless of any divine intervention that may occur.+ More
More Seasons
Characters & Voice Actors
Recommended for you
Space Pirate Mito
TV
24m
The Guardian Brothers
Movie
109m
Wicked City
Movie
82m
Pokémon: Black & White
TV
22m
Sakura Wars: School of Paris
OVA
25m
Astroganger
TV
24m
Yume Tsukai
TV
24m
Captain Earth
TV
24m
F-Zero: GP Legend
TV
23m
Frame Arms Girl
TV
23m
Fuuma no Kojirou: Yasha-hen
OVA
25m
Gall Force 2: Destruction
OVA
50m
Jack and the Beanstalk
Movie
88m
