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Bastion Misawa, known in the Japanese version as Daichi Misawa, is a highly analytic duelist who resides in the Ra Yellow dorm at Duel Academia. Bastion is a mathematic genius who covers his cards and the walls of his room with endless numeric formulas, believing that everything in life can be calculated arithmetically. The neglect of his character is a running gag throughout the series in both incarnations.

Originally a friend and sometimes rival of Jaden Yuki, Daichi's role in the anime slightly decreases as each arc passes, although his role in the manga does not.

He was voiced by Yuki Masuda in the Japanese version, and by Eric Stuart in the English version.



Bastion's usual outfit consists of the standard Ra Yellow. His black hair is neatly arranged, with a large portion flushed back and slightly to his left, featuring different layers where the sloping changes direction. He carries a Duel Academia-issued duel disk on his left hand.


Despite his protests that such feelings are illogical and irrational, it is implied that Bastion has feelings for several female monster cards seen throughout the series, his primary crush being "White Magician Pikeru", but it is to believe that he is crushing on other cards and other girls, like during the beginning of the Genex Tournament he couldn't attack "Possession-Equipped Hiita", because he liked her and when a doll named Alice showed up, he wished her to be with him instead of Tyranno Kenzan. In the dub, Bastion speaks with a British accent. In the Japanese version, Bastion occasionally addresses Jaden as "Ichiban-kun" meaning "Number one".


His given name in the Japanese version means "great intellect", reflecting his Dueling style and character.


Freshman Year

Bastion is often a source or wisdom and insight for Jaden and Syrus.

Seven Stars

Daichi came in as #1 in the entry examinations and is generally regarded as the best newcomer student. He and Jaden Yuki first met during the examinations, with Jaden referring to him as "#2," and himself as "#1." After seeing Jaden defeat Cronos de Medici, Bastion himself agrees with these titles.

After defeating Jun Manjoume in a public duel, Bastion is offered entrance into Obelisk Blue but declines, saying that he promised himself he would not advance to Obelisk Blue until he was the #1 duelist of the freshman class and in order to do so, he would have to defeat Jaden, who he viewed as #1. He builds a seventh deck, seemingly based off his Water Deck which is devoted to sealing certain cards so that an opponent will not be able to Summon most of his or her monsters. Bastion uses the seventh deck against Jaden, preventing the use of "Fusion" with "Cursed Seal of the Forbidden Spell", therefore keeping Jaden from calling forth his stronger monsters but is still defeated when Jaden uses a combination of "Elemental HERO Wildman" and "Cyclone Boomerang" to destroy his spell and trap cards.

Due to his skill, Daichi is one of the seven duelists that receive a Spirit Keys to the Spirit Gate that can unleash the Three Phantasms cards. Bastion only duels one of the Seven Stars Assassins, Tania. Although Bastion uses his "Magna Warrior" monsters, which use opposing plus and minus charges to stop his opponent's attacks and fuse to become stronger, he loses. Afterward, he is stripped of his free will to a degree and becomes infatuated with Tania. He returns to normal after Judai defeats her and she runs off, leaving her Dark Item behind.

Society of Light

At one point during the second year, angered by the fact that he was not considered for entry into the Society of Light, Bastion challenges Takuma Saiou to a duel in order to prove his strength and disband the Society. Manjoume, however, takes Saiou's place, and although Bastion has the means of being victorious, Saiou takes advantage of his self-doubt and desire to be accepted, convincing him to intentionally lose to Manjoume and finally join the organization.

Following his conversion, Bastion is relegated to the sidelines, watching helplessly as other Society members are given the opportunity to duel Judai and convert other school members into their group, while he himself is assigned no such tasks. He tries to show loyalty to the society by bleaching his hair white, but nobody notices him. When the Genex Tournament started, he tried to challenge Prince Ojin to a battle, but Saiou battles the latter instead. After weeks of such torture, as well as a conversation with Dr. Allbert Zweinstein, he becomes "enlightened" about his worth as a duelist and as a person and leaves the Society of his own accord to pursue his goals.

Dimension World

After leaving the Society of Light, Daichi follows Dr. Zweinstein back to his laboratory and becomes his impromptu apprentice, helping him with an experiment in quantum mechanics. However, the experiment goes wrong, and Bastion is flung into the same alternate world that Judai and his friends, as well as the entire Duel Academia main building, is pulled into after Jaden's duel with Professor Cobra. There, he wandered the world for an indeterminate amount of time, until he was finally reunited with his friends. When Rei Saotome is found injured, Bastion offers to help her get the medical attention she needs by locating a submarine he had spotted earlier in his travels, and attempting to use it to get her out of the campus building and to a hospital. After volunteering himself to Jaden's and co.'s mission to rescue Johan Andersen, who was still trapped in an alternate dimension, Bastion meets up with Tania again, who herself was pulled in from her own dimension. The two wander around to protect the dimension's inhabitants. He later comes to inform Jaden about Yubel's plan to unite all 12 dimensions together and then urges Jaden to accept the Supreme King because the Supreme King is a part of his soul, and without him, he will not have the power to stop Yubel.


Daichi decides to stay in the alternate dimension with Tania which is where he is presumed to still be. However, among the silhouetted images of duelists that Darkness shows to Jaden is one that strongly resembles Bastion. He was presumably restored after Jaden defeated Darkness.



  • Bastion carefully calculates how his cards affect and balance each other; he claims just one wrong card could throw off the entire thing.
  • The writers forgot to give Bastion a Duel with his Fire counterpart to Water Dragon; making it one of the only monster that appears in the opening that never makes a debut in-show. Even in the real life card fame, over neary two decades later; no "Fire Dragon" has been made.
  • In the manga, Bastion uses a Zombie deck based on Japanese apparitions.
  • His dorm teacher (who is forgettable) implies Bastion visits Slifer Red so much (to spend time with Jaden) that he practically lives there.
  • Similar to how Hassleberry was a replacement for Chumley in Jaden's group structure, Bastion got replaced by Jesse.


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