Story
Before Aladdin and Alibaba, there was Sinbad – Monarch of Sindria and Conqueror of the Seven Seas! Go back to where it all began, and follow the epic journey of a young, charismatic hero as he embarks on his adventures across distant lands, captures legendary dungeons, and establishes his own kingdom!
Synopsis via AniList (English).
Preview
From the anime adaptation: Magi: Adventure of Sinbad (OVA).