For Victory, I Am Willing to Give Up My Old Friends

The non-Yu-surnamed protagonist, Ye Xiu, was eliminated by his own best bro's grand opening and ended up in a strange world.

Exodia's Circus Guillotine: "You over there, duel me!"

Ye Xiu: "?????"

With his bonds maxed out, he was only one Fusion card away from bringing out Cyber End Dragon on his first turn.

Then one day, he discovered that every deck he played gave him an incredible opening hand, except his Cyber Dragon deck.

"...For the sake of victory, I'm willing to give up my old friend!" Ye Xiu declared.