Yugi and the gang have eventually grown hungry after going through their first two duels. They didn't pack any food, and have come to the Duelist Kingdom unprepared.Joey smells something cooking off in the distance and goes to check it out.
Joey and Tristan go off and try to eat the fish when they are caught by the Duel Monsters top ocean duelist, Mako Tsunami. Mako asks who they are, and when he finds out that Yugi is one of the people, he gladly offers the gang some food. In return, however, Kajiki challenges Yugi to a duel.
Going on a field that is half-land, half-sea takes Yami Yugi by suprise, at first. The first few monsters Yugi lays out are devoured, due to the sea-based part of the field covering Mako's monsters. Yugi then plays Silver Fang attached with the Full Moon, raising Fang's attack strength. Unfortunately, Mako draws Leviathan (English name: Kyrioshin) which summons up a tidal wave leaving Yugi with an island to spare.
By now, Mako has 3-4 monsters on the field. Yugi uses his last attempt to win by summoning Great Soldier of Stone and going to attack mode. After Mako carelessly surrounds Yugi's Rock Soldier with all his monsters, Yugi attacks the Full Moon card he had placed on the field. This reverses the tides and wins Yugi the duel.