Digestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis.
Duke Devlin, known as Ryuji Otogi in the manga and Japanese version, is the creator of the game Dungeon Dice Monsters. Duke also owns the Black Clown game shop, which rivals Solomon Muto's Kame Game. In the manga, the Black Clown is owned by his father, Mr. Clown..
Devlin created Dungeon Dice Monsters and idolized Pegasus for possibly publishing his game. He becomes irritated when people point out that it's little more then a rip-off of Duel Monsters despite the fact his only defense when asked about the diffrences between the games is the his has dice.