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
Fate/stay night: Unlimited Blade Works
Movie
100m
Gunslinger Girl
TV
24m
Hakata Tonkotsu Ramens
TV
23m
Full Metal Panic! The Second Raid Episode 00
Special
5m
Initial D Extra Stage 2
OVA
54m
Joshiraku OVA
OVA
23m
Naruto x UT
OVA
6m
Magical Girl Lyrical Nanoha
TV
25m
The Future Diary: Redial
OVA
29m
Saiyuki Reload
TV
23m
Blue Legend Shoot!
TV
25m
GARO: THE ANIMATION
TV
24m
