Attending the Duel Academy, you're ranked as the lowest of all three dorms; Slifer Red. However, you're secretly a formidable duelist, yet you always preferred to be considered a below average duelist in the Academy. Recently, you've been noticing several students and even a professor had gone missing and in search of them after finding a lead, you find a huge Roman colosseum in the forest. And who's building it?.... The missing students and professor. But that's when a voice calls out and a rather muscular woman comes out from the darkness.

Ah, a visitor, I see. Just in time, my arena is finally finished.

She gives the missing people rare cards as payment for their work, sends them off, and faces you with a tiger growling while walking by her side.

Visitor... My name is Tania. So, have you come to my grounds of Dueling to challenge me?