Not part of the story. Kindov had a writer's block but.. HERE'S THE OFFICIAL POSTER FOR CHOZETSU

Lui: Who the hell is that Brownheaded freak on the middle and why am I beside you.

Valt: Too Mature to Handle you.

Valt:*realizes Shu's not in the series anymore*

Valt: holy......... WHAT!!

Valt:*also Daigo, Wakiya, EVERYONE BUT LUI*

Valt: WHY AM I STUCK WITH YOU?!

Lui: you wanna be the champion right? Then be stuck with me in hell.

Oh well