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
Astral
Main
Irino, Miyu
Japanese
Kamishiro, Ryouga
Main
Garbolino, Davide
Japanese
Mizuki, Kotori
Main
Stevens, Eileen
Japanese
Tenjou, Kaito
Main
Kromer, Christopher
Japanese
Tsukumo, Yuuma
Main
Itou, Mika
Japanese
Cathy
Main
Kobayashi, Yuu
JapanesePromotion Videos
CM 2
CM 1
Recommended for you
Legend of Exorcism
ONA
19m
Fairies Albums 2nd Season
ONA
20m
Epic of Divinity Light
ONA
23m
Drowning Sorrows in Raging Fire
ONA
15m
Gundam Build Divers Battlogue
ONA
11m
God of Desolation
ONA
8m
Tonikaku Kawaii: SNS
OVA
24m
Kuma Kuma Kuma Bear Punch!
TV
23m
God of Ten Thousand Realms
ONA
9m
Taisho Otome Fairy Tale
TV
24m
Platinum End
TV
24m
Record of Ragnarok
ONA
24m
World Trigger 3rd Season
TV
23m
Belle
Movie
122m