Akiza Izinski ( World Championship ) Akiza Izinski , known as Aki Izayoi ( アキ , " Izayoi Aki " ) in the Japanese version , is a character in the " Yu - Gi - Oh ! World Championship " video game series . This is a video game depiction of Akiza Izinski , a character from the " Yu - Gi - Oh ! 5D ' s " anime . Born with psychic abilities , Akiza was eventually rejected by society , becoming a pariah known as the Black Rose Witch ( の , " Kurobara no Majo " ) . Over time , Akiza embraces her role as a Signer and joins the others to protect New Domino City . Biography . Stardust Accelerator . The player along with Leo and Luna visited the Underground Duel Arena in order to find the Witch , a person who was rumored to cause destruction and pain during her Duel s . Upon arriving in the arena , the twins questioned the witch ' s personality but are interrupted by a piercing scream of a man , followed by the roar of a dragon . The crowds spectating the Duel screamed as Akiza approached the Duelist she defeated , but she was intercepted by the player . Upon approaching her , a sharp jolt shot through the player ' s head , returning some more of their lost memories . Akiza questioned what the player was hiding under their hand , and upon seeing their Mark of the Dragon , she becomes enraged , challenging the player to a Duel . After being defeated , Akiza silently left the arena . The player later faces Akiza in the semi - finals of the Fortune Cup tournament where she again threatens to destroy them for having a Mark of the Dragon , but she is defeated again . After the Fortune Cup , Akiza is located in the Underground Duel Arena where her hatred for the player has disappeared now that their Mark of the Dragon has gone . Reverse of Arcadia . Awakening - Arcadia Movement . The player is introduced to Akiza by Sayer shortly before she entered the Fortune Cup . Sayer requested that the player along with Okita and Liquid infiltrate location of the tournament to support Akiza . During the tournament , Yusei Fudo implored Akiza to think for herself shortly before defeating her with his " Stardust Dragon " . After her defeat , Akiza was escorted from the tournament by Sayer , who complimented her on doing a good job and suggested they return home for her to rest . They are however intercepted by Lazar along with two of his henchmen who requested Akiza come with them to talk to Rex Goodwin . Wanting to return to the Arcadia Movement building , Sayer enlisted the help of the player , Okita and Liquid to prevent them from getting to Akiza . Upon returning to the Arcadia Movement , Sayer placed Akiza into a regenerative state where she questioned Sayer on what Yusei told her during the Fortune Cup . Annoyed , Sayer stated that Yusei spoke nothing but nonsense and that Akiza only had to listen to what he says . To sharpen up Akiza ' s Dueling , Sayer requested the help of the player . Upon entering Sayer ' s office , he insisted that Akiza go all out with her abilities and to think of it as training . Akiza thanked the player for agreeing to Duel . When the Duel concluded , Akiza ' s abilities threw the player into a wall , revealing that she still couldn ' t control them . Sayer then suggested that Akiza should go and rest . Before taking her leave , Akiza stopped and silently looked at the player before continuing to exit Sayer ' s office . The Journey - An Old Encounter , the Escape and a New Menace . During an attempted escape from the Arcadia Movement , the player overheard Akiza talking to Misty Tredwell who accused Akiza of killing her brother . The two then began a Duel . After the player arrived at Akiza ' s location , they witnessed Misty insult Akiza for being nothing but a destructive and selfish witch . She then watched helplessly as Sayer fell from the floor above to his apparent death . Due to the destruction that " Earthbound Immortal Aslla piscu " caused , Misty postponed the Duel and left . Akiza and the player were then escorted from the building by Yusei . As Akiza was harmed during the assault , Yusei insisted that she visit a doctor . Due to the destruction of the Arcadia Movement building , Akiza and the player were left homeless , but Yusei suggested that they stay at Blister ' s apartment for the time being . Yusei later informed the player that the doctor said Akiza was fine . That night , several Shadow Drones infiltrated Blister ' s apartment , looking to Duel the player , Yusei and Akiza . Yusei held two off near the elevator whilst the player went to check on Akiza , but she had already been attacked by Jean , making her go into an enraged state . Upon defeating the Shadow Drone , he returned to his normal self and left the building . However , Akiza ' s abilities took over and she became enraged and challenged the player to a Duel , threatening to tear the world apart . After being defeated , Akiza returned to herself but upon realising that Sayer had died , she began doubting her existence and purpose . Yusei informed Akiza that the player and he are her friends , and that as a Signer , they will always have a bond . Akiza thanked Yusei and agreed to help him in the war against the Dark Signer s . The three of them then agreed that it was late and went to sleep . The next day , Akiza thanked the player for preventing her from going down a path of destruction , gifting them a " Queen of Thorns " card . Akiza then questioned the player on why they were involved with the Arcadia Movement and was shocked to hear that they were brainwashed by Sayer , having no idea that he was responsible for doing such things . The conversation was cut short as Mina Simington arrived and requested the attendance of Yusei , Akiza to Rex Goodwin ' s mansion to discuss the matter of the Crimson Dragon and the Dark Signers . After Mina left , Akiza asked Yusei whether they could trust Goodwin , to which Yusei told her that although after everything he had done , he was the only one who knew what was going on . Fate - Signers vs Dark Signers . Akiza later attends the meeting at Rex ' s mansion where he informed them that the Crimson Dragon was the one that guided their destinies to where they were . Akiza questioned Goodwin on whether it was her destiny to have the powers she hates and that have caused misery for both her and others , resulting in her becoming a pariah , to which Goodwin responds that without those abilities , none of them would have met . Rex informed them of the intentions of the Dark Signers which Akiza questioned him on how to stop them . She then became worried when Yusei insisted that he would defeat the Dark Signers and protect Satellite from being destroyed . After arriving in Satellite , Akiza was visited by Misty who instructed her to come to the Ener - D control unit . Misty told Akiza that she wanted to Duel , not because she was a Dark Signer , but as a sister looking for revenge for the death of her brother . She then quickly left to look for Misty , worrying Yusei in the process . Upon arriving at the Ener - D control unit , that Misty was guarding , the player noticed that Akiza had become the Black Rose Witch again , enraging Misty in the process as Akiza had revealed her " true self " . The player spotted Sayer , who informed the player that he had put Akiza under his control and that he was the one responsible for Misty ' s brother ' s death . After the player defeated Sayer , he ran off saying that as long as he had Akiza , he was fine . The player then chased Sayer and ran into Mina , who informed them that Akiza displayed her powers as normal until Sayer showed up , after which she became his puppet . Sayer then told Akiza to destroy Misty , which she agreed to . Misty overheard the player and Mina discussing what Sayer had done , realizing that he was the one responsible for her brother ' s death . Misty ordered her " Earthbound Immortal Ccarayhua " to consume Sayer , killing him . Realizing that Akiza was not responsible for her brother ' s death , Misty apologized to Akiza , stating that she had no reason to fight , but her " Earthbound Immortal " took control of her body . Sayer ' s death snapped Akiza from his control , but as she had no idea of what was occurring , the player stepped in , Dueling a controlled Misty in her place . Defeated , Misty snapped out of the control of the " Earthbound Immortal " and was comforted by Akiza . Before dying , Misty told Akiza to protect the world as a Signer , asking Akiza not to forget about her . Akiza then sealed the control unit with her " Black Rose Dragon " . Exhausted from what had happened , Akiza was taken home by Mina . Akiza was later teleported to Rex Goodwin ' s mansion , where she watched the player Duel against Lazar . After the Duel , she was confused about why Lazar had Dueled the player and was shocked when a temple emerged from Goodwin ' s mansion . Yusei and Trudge then arrived , with Akiza informing them of what had happened . Akiza ran toward the temple , despite Mina ' s protests as she had promised Misty that she would protect the world as a Signer . After entering the courtyard , she wondered why the temple chose to surface and was shocked when Rex informed them that the world was doomed . After Rex informed the player , Yusei and Akiza that he was the one who summoned the King of the Underworld , Akiza questioned Goodwin on why he did such a thing . When Rex embraced his condor birthmark , Akiza remarked that it was what happened to Misty . She then supported the player and Yusei during their Duels against Rex . During the epilogue , it was revealed that Akiza had learned how to Turbo Duel , riding her " Bloody Kiss " Duel Runner . The player could later find her in the outer rim . Over the Nexus . Changes - Preparing for the Tournament and a Looming Shadow . The player is introduced to Akiza by Crow Hogan , informing them that Akiza had just become a Turbo Duelist . They then decided to Turbo Duel to help Akiza get used to riding her Duel Runner . A few days later , Akiza arrived at the garage again , looking for an opponent to Turbo Duel against , but Misaki was busy tuning her Duel Runner . Akiza informed Misaki that Bruno was extremely helpful with projects like that , she then displayed annoyance at how Yusei had been spending more time with Bruno than with her lately . After the player enlists the help of Bruno , Yusei realised how much he had been ignoring Akiza and left to apologise to her . To the Future - State of the WRGP and the World . Akiza took part in the Battle Royal between the Diablo and the World Racing Grand Prix contestants . She later cheered on the player alongside Crow , Leo , Luna , Misaki and Toru during their Duel against Team New World . The player could later find her in the outer rim , alongside Tetsu Trudge .