Kojiro Sasaki

Kojiro was first introduced in the Duel Masters Versus season of the Duel Masters Anime.

Background
He is one of the Junior High School students and Katsuta Kirifuda's new rival.

He has three "brothers" who follow him around and eat his rice dishes. Kojiro is not wealthy, but he survives by being a cook. His other jobs include dueling and boxing.

As a boxer, he is said to have a "hungry spirit", and the same is for him as a duelist. Katta himself noticed that he duels differently when he is "hungry".

While apparently calm, during a duel he starts behaving wildly, entering "beast mode".

Lucifer, who is wealthy, looks down upon Kojiro with hostility, the feeling between them being mutual.

Deck
His first deck was a mono Darkness deck focused on Funky Knightmares and Demon Command Dragons.
 * Black Lucifer, Sorcerer of Darkness
 * Bonbaku Bonbon
 * Bone Dance Charger

Hyperspatial zone: His new deck for the tournament was a modified version of DMD-19. Hyperspatial zone:
 * Demon Wolf, Howling Moonlight Castle
 * Destolonely, Demon Dragon King
 * Fusshisshi the Invulnerable
 * Futureless, Despair Demon Dragon
 * Infernal Death Sunrise
 * Olzekia, General of Decapitation
 * Pork Beef
 * Superbia, Pride Demon Dragon
 * Taigamaito, Bomb Devil
 * Tsumitobatsu, Misfortune Hero
 * Ulvorof, Dragon Edge
 * Vice Kaiser Zeta, the Vengeance
 * Wicked Soul Reincarnation
 * Go To Hell, Annihilator Blade / Deathshiraz, Demonic Corrupt King
 * Bonbaku Bonbon
 * Demon Wolf, Howling Moonlight Castle
 * Gravemott, Gravestone Demon Dragon
 * Hyperspatial Emperor Hole
 * Hyperspatial Romanoff Hole
 * Jenny, the Suicide Doll
 * Pork Beef
 * Taigamaito, Bomb Devil
 * Tsumitobatsu, Misfortune Hero
 * Ulvorof, Dragon Edge
 * Urami Hades, Curse Hero
 * Black Ganveet, Temporal Soldier / Darkness Ganveet, the Assassin Awakened
 * Diabolos, Prison Dragon Edge / Diajigoku, Annihilation Demon Dragon
 * Diabolos Double Zeta, Temporal Demon Dragon / Devil Diabolos Double Zeta, Ultimate Awakened
 * Dias Zeta, the Temporal Suppressor / Diabolos Zeta, Annihilation Awakened
 * Discald, Misfortune Demon Sickle / Doclald, Misfortune Demon Dragon
 * Go To Hell, Annihilator Blade / Deathshiraz, Demonic Corrupt King
 * Olzekia, Temporal Sword General / Galactica Olzekia, the Decapitator Awakened

Trivia

 * His voice actor also voiced for Boy George.