Duel Masters: Playing with a Full Deck

This is the first episode in the first season of Duel Masters in the english anime.

Story
As our story begins, Shobu Kirifuda is marvelling over how big of a Duel Master he will be when he grows up at the game of Duel Masters, when his best friend Rekuta's father calls over the hill that the DM Tournament has started, and that if they don't get there quickly, they will be disqualified. At this announcement Shobu starts to freak out and starts running towards the stadium. While he is running to the tournament he notices a man with long black hair, sunglasses, and a sports car staring at him. He shakes the weird feeling off and keeps running.

As the tournament continues, Shobu has just defeated his last opponent, and is moving on to the finals against Joe. But when the match arrives, it is revealed by Rekuta and Sayuki that Joe has cheated and switched decks! But despite this, Shobu still manages to defeat him, and win the tournament. After the tournament, Shobu is congratulating himself on his win, when the black-haired man walks up to him, and is introduced as Knight. He congratulates Shobu on winning the tournament, and asks him if he wants to duel him at the center the next day.

Shobu, at first, takes this in as a big joke, but after some taunting, he agrees. The next day, Shobu arrives at the center, and Rakudah immediately takes notice of all of Knight's trophies. "You must be the greatest Kaijudo Master in the world!" he remarks, and Knight just shrugs it off, and starts the game. Shobu is immediately cocky, but Knight warns him not to be, as he's never really played a real duel before. And it shows, as Shobu is repeatedly knocked down by Knight's attacks, until he has only 1 shield left! Sinking into dispair, Shobu is about to quit, when he remembers something his father (Shori Kirifuda) once said to him. "Believe in yourself, and you'll always win."

Shobu then decides not to quit, and starts to hold his own against Knight. In the end however, Knight defeats Shobu with the "Holy Awe" Light Card. Outside the center, Shobu is depressed thinking that he can't go home again. Rekuta tries to cheer him up, saying that it's not really a big deal that he lost one game. When he gets back home his mother Mai Kirifuda finds out, and Shobu loses the bet they made, that if Shobu lost even one duel, he had to do whatever his mom wanted for a whole day!.

Trivia
We are introduced to 2 of the main characters we see in the later season (Shobu and Rekuta) and others such as Sayuki, Knight, and Mai we see throughout this season.