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
Fire Force Season 2
TV
24m
GATE 2nd Season
TV
23m
Haikyuu!!: Riku vs. Kuu
OVA
22m
Teasing Master Takagi-san
TV
23m
Lupin III: Part II
TV
25m
Initial D Legend 1 Awakening
Movie
62m
Kyousougiga
TV
25m
Lupin III vs. Detective Conan
Special
105m
Mobile Suit Gundam SEED
TV
24m
New Game!!
TV
24m
Noragami OVA
OVA
24m
Food Wars! The Fourth Plate
TV
24m
