Magi: Sinbad no Bouken (TV)

Dungeons, which are enigmatic buildings, have recently started to sprout all over the planet. Nobody is certain about their nature or origin, but explorers and armies from all over the world have shown an immediate interest in them. Numerous people headed out to investigate the Dungeons, but none have come back so far. A young boy is preparing to establish himself at a Parthevian port. Sinbad is amiable, powerful, and itching for adventure. A nice act brings him together with Yunan, a mysterious traveler who is significantly more powerful than his lighthearted demeanour would suggest. Yunan gives Sinbad the order to conquer a dungeon in order to obtain the "might of the king" and transform the world. The enthusiastic lad accepts without hesitation and embarks on the epic journey he has been longing for.