Ten years later
It had been lonely for the retired champion, travelling the world on his own. Occasionally he would be challenged by either a rookie duellist making a name for himself or a veteran who wanted to try his best against the legendary Muto Yugi of Japan. Still he enjoyed it. Each time was a chance not only to duel for the fun of it, but also to show how far he had come since he parted ways with his partner and friend Pharaoh Atem.
It was also a chance to grow as a person. Learning more about the world around him and the cultures outside of Japan. While he met many new friends on his journey he still remembered fondly his adventures with Atem, Jounochi, Honda, Anzu and even Kaiba.
He was touring France when he would find that some things would not stay in the past. While walking a long a road towards Paris, he was accosted by a cocky rookie. "Hey, you're that Muto guy. Duellist Kingdom, Battle City. Sure, those were good wins, but I could kick anyone's butt from those." Yugi just smiles. "There's more than power. Sure. I'll see what you've got." He readies his Duel Disk, shuffles his deck and loads it into his disk.
The challenger readied his disk. A green scythe like blade extended from it. Yugi recognised it instantly. "Where did you get that?" He asked. The challenger did not answer. He merely shuffled his deck and loaded it. Both disks then displayed 4000 Life Points.
As the duel progressed Yugi had an advantage at the start. This changed when the challenger drew something that made him grin maliciously. "I activate The Seal of Orichalcos!" He declared, sliding his newly drawn card into the slot at the end of the Duel Disk. Yugi was horrified. After ten years. How could a Seal exist, let alone be activated? They destroyed the Leviathan. Even Dartz appeared to have reformed before passing.
The dreaded seal formed underneath their feet. This was not a just for fun game. Their souls were on the line now. If the challenger knew what he was doing, he was playing for keeps. "Yugi Muto. Your soul will make me a hero in the Legion. We've been looking all over the world for you."
"Who are you working for?" Yugi demanded. "Doma?"
"Doma no longer exists. I am sworn to serve the Orichalcos."
"You have to stop this! You do know if you lose you will lose your soul!"
"I have already given my soul. It is the mission of every Orichalcos Legionary to take as many as he or she can with them. Glory to the Orichalcos!"
This was insane, Yugi thought. Doma's duellists were driven. But they were tricked into joining. This guy seems like a fanatic. Fully aware of the cost and seems ready to pay it. There was no way out. The Seal would only go if it were cut off by the challenger, and that wasn't going to happen, or to try and force a draw.
As the duel continued, he noticed something odd. The challenger never used more than 5 monsters. The rules said you couldn't use more, but the Seal allowed up to ten. Was this guy up to something, or maybe he couldn't summon more. He did find however he wasn't able to attack the challengers weakest monster while he had more than one on the field. Despite this change, the challenger gained an advantage.
Yugi was able to turn it around. Though he found he was unable to force a draw. Reluctantly he delivered the final blow, reducing the challenger's life points to 0. The challenger knelt as the seal closed in on him. He did not panic or beg, he merely said "Glory to the Orichalcos." before the light of the seal faded, and his body fell to the floor.
Yugi rushed over the the body. There was nothing he could do for him now, but his mind was full of questions. He looked through the scattered cards, there was The Seal. As they did before, an image of its victim was inside it. Not the look of terror he was familiar with, but a look of resignation.
Even that duellist who stole the God Cards was terrified at the prospect of losing his soul.
He examined the card again. He needed help. He knew someone who had a lot of knowledge of ancient Atlantis and the Orichalcos, but they were in America. He pocketed the card. He found a payphone nearby and called for an ambulance. He could only hope they could keep him alive until he could be freed.