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This article contains information from the unofficial English translation patch for Gyakuten Kenji 2.

Owing to the lack of an official translation of the Japan-only Gyakuten Kenji 2, the information and names in this article come from the unofficial English translation patch known as Ace Attorney Investigations: Miles Edgeworth: Prosecutor's Path. More information on this can be found here.

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Blaise Debeste
When you get to where I am, you can just create your own truths. Anytime you want.

Blaise Debeste was a prosecutor who served as Chief Prosecutor and Chairman of the Prosecutorial Investigation Committee during his career. He is the father of prosecutor Sebastian Debeste. In 2019, he was found to have abused his power for the purpose of various criminal activities and disposing of those who defied him. His actions had far-reaching consequences, especially for the many people affected by the IS-7, DL-6, and SS-5 Incidents.

Black market auction[]

One of Blaise Debeste's black market auctions.

Blaise held secret auctions of evidence from various past cases. He provided auction participants with masks with voice-changers attached in order to conceal their identities. Blaise usually wore a wig, but took it off when conducting auctions so as not to be recognizable (although he still wore a mask like the other participants). However, taking off the wig would reveal a burn scar, which only a few people knew about. His dealings eventually attracted the attention of photojournalist Jack Cameron, who conducted a secret investigation on him.

Case manipulation[]

IS-7 Incident[]

Main articles: IS-7 Incident & The Inherited Turnabout

During Blaise's time as Chief Prosecutor, Detective Rip Lacer reported to him about the IS-7 Incident, which occurred on December 24, 2000, in particular the disappearance of the victim's body. Blaise neglected to tell this to the prosecutor in charge of the case, Manfred von Karma, who indicted Jeffrey Master after believing that an autopsy report was going to be given to him. Von Karma eventually found out about the missing body, but it was too late to back out of the indictment. Blaise coerced Bonnie Young into forging an autopsy report, allowing von Karma to take a fabricated case to court against defense attorney Gregory Edgeworth.

Edgeworth was able to deduce that the body had gone missing, and that the autopsy report had been made up. Von Karma was able to use his influence on the police force to discredit the accusations, but Edgeworth managed to prove that the prosecutor had had Lacer coerce Master into confessing to being an accomplice to the murder. Von Karma still won the case, but Blaise penalized him for his mistake. The rest of the blame fell on Lacer for the false confession. His involvement in the falsified autopsy report would go undiscovered for many years.

The penalty Blaise gave von Karma was the only one he had ever received in his career and created a blight on his otherwise perfect record. Von Karma was enraged at this as he valued perfection above all else, and later murdered Edgeworth in retaliation, an event which had far-reaching consequences for both Gregory's son and the entire Fey clan.

SS-5 Incident[]

Main article: SS-5 Incident

The conspirators.

In 2007, a body double of President Di-Jun Huang of Zheng Fa approached Blaise for assistance in covering up a planned assassination of his employer. The plan was to hire assassin Sirhan Dogen to kill the real president so that the body double could replace him. Blaise bribed Patricia Roland, the owner of the Happy Family Home orphanage, into helping them, as the body double had learned that Huang was planning to go there in secret to meet his son, John Marsh, at midnight on February 10. Blaise stalked Amy Marsh, John's mother, but Amy realized that she was being watched and returned home. Meanwhile, the assassin encountered the president at the appointed time and killed him.

Blaise and Roland arrived to dispose of the body. They planned on killing Dogen as well, but a boy at the orphanage started a fire, distracting them long enough for the assassin to escape. Cameron then arrived at the scene. Believing that the president was being kidnapped, he called his girlfriend, Jill Crane, to tell her about it. While he was leaving a voicemail message, the body double struck him from behind with a brick, killing him. The three conspirators decided to run with the kidnapping ruse and staged a photo showing the body double apparently being threatened by an unknown assailant, played by Roland, outside the orphanage grounds. Cameron's body was moved inside the orphanage grounds, and his own photos were replaced by the staged one they had created.

In the days that followed, Roland ruthlessly interrogated the child who had set the fire, while the government of Zheng Fa paid the "kidnapper's" ransom to return the "president". Dai-Long Lang, a police officer and close friend of the president, took responsibility for not preventing the "kidnapping" and was demoted. However, he continued to investigate Cameron's death and eventually arrested Patricia Roland as the only possible suspect. Blaise took charge of the prosecution, manipulating evidence so that Huang's blood would be presented as Cameron's, and using the forged photo to claim that there was no connection between the kidnapping and the orphanage. This ensured Roland's acquittal, and Lang subsequently resigned in shame. Meanwhile, the boy ran away from the orphanage, and though Blaise had his henchmen search for him, he was never found. Blaise had the SS-5 Incident files sealed so that no one would be able to figure out the truth.

As chairman[]

The Prosecutorial Investigation Committee.

Blaise later left the post of Chief Prosecutor and became the Chair of the Prosecutorial Investigation Committee (P.I.C.). He also arranged to have Roland assigned as the warden of the local prison, with Dogen being eventually caught and sent to that very prison. Dogen told Roland that he knew about the existence of the real president's son, and could thus prove that the "President Huang" who had been returned to Zheng Fa was a fake. Dogen used this knowledge to blackmail Roland into doing favors for him and the other prisoners, such as obtaining items from outside.

When the Grand Tower was built in 2018 at the former site of the Happy Family Home, the black market auctions took place in the meeting room of the P.I.C. on the 50th floor. The floor right above it was rendered inaccessible by normal means and was used as a warehouse to store the goods. By this time, Jill Crane had become a member of the P.I.C., with the aim of seeking revenge for Cameron's death. She eventually found out about Blaise's illegal activities.

Attempts to stymie Edgeworth[]

Main articles: Turnabout Target, The Imprisoned Turnabout, and The Inherited Turnabout

On March 25, 2019, the body double became involved in a fake assassination incident that resulted in the death of one of his bodyguards. Thanks to the efforts of prosecutor Miles Edgeworth, another bodyguard, called Horace Knightley, was revealed to be the culprit and was arrested for the murder. Blaise agreed to help cover up the incident for the body double by making it seem as if Knightley had tried to really assassinate the president, instead of the plan actually being a scheme by the president and Knightley to boost flagging approval ratings back in Zheng Fa. Knightley was sent to Roland's prison.

Two days later, Roland reported to Blaise about her suspicion that Knightley was in league with Dogen, as well as telling him to dig up the real president's body, as it could be discovered due to construction in the area. Knightley was found dead hours later, and Blaise sent P.I.C. member Justine Courtney and his own son Sebastian to take over the ensuing investigation and prevent Miles Edgeworth from participating. Although Roland intended to frame Dogen for the murder, Courtney and Sebastian went after Simon Keyes. However, Edgeworth returned as an assistant to Keyes's hired defense attorney, Raymond Shields, and successfully had Roland indicted for the murder. Sebastian gave the evidence for the case to his father for safekeeping, but Blaise, intending on ensuring an acquittal for his former co-conspirator, threw the evidence away.

On April 2, an incident at Jeffrey Master's old mansion brought the IS-7 Incident back to the forefront. Under Blaise's orders, Courtney again tried to take over the investigation and replace Edgeworth with Sebastian. However, the victim's body was discovered, proving that the autopsy report from the IS-7 Incident really had been faked all along, and Courtney allowed Edgeworth and Shields to investigate, since they had been Gregory Edgeworth's son and investigative partner, respectively. They eventually had Dane Gustavia arrested as the culprit. Seeing Edgeworth as a threat, Blaise scheduled a hearing at the P.I.C. to have Edgeworth dismissed.

Crane's murder[]

Main article: The Forgotten Turnabout
Blaise Debeste
If you play with fire, you're gonna get burned, Edgeworth... Juuust kidding, I always wanted to say that, y'know.

The corpse of Jill Crane.

On the night of April 4, 2019, Blaise held another auction. He had learned from an anonymous source that Crane was planning on killing him, so he prepared a countermeasure ahead of time. He blackmailed Young's granddaughter, Karin Jenson, into serving as an accomplice. When Crane won one of the items, she and Blaise went to the warehouse to arrange payment. Crane confronted Blaise, saying that she recognized his burn, only for the latter to mortally strike her with his auction gavel.

Blaise had Jenson take Crane's place, and provided a wig for her so that she could blend in perfectly due to her similar physique. The body was stored in a costume trunk, which Jenson was instructed to buy. When the two returned for the trunk, they found that Crane had climbed up to the viewing platform before succumbing to her wound, with an unconscious Kay Faraday on the warehouse floor. Blaise discovered letters that had apparently been exchanged between Crane and Faraday. He believed that Faraday and Crane had collaborated to steal back Faraday's promise notebook (given to her as a child by her father but seized as evidence after his murder) and decided to pin the murder on her.

Both Faraday and Crane were locked in the trunk until the next day. Blaise lowered Crane's body to the meeting room, where she would later be found, and planted one of the letters on her. He also planted incriminating evidence on Faraday and had Jenson take her outside, where she woke up with amnesia. Jenson "found" Faraday and took her to Miles Edgeworth, as his business card was on her.

Edgeworth decided to investigate the cause of Faraday's amnesia, leading him to the fake crime scene. Blaise tried to arrest Faraday for Crane's murder, but Edgeworth defied him to the point of giving up his prosecutor's badge and conducting his own investigation in secret with Faraday, eventually discovering the hidden warehouse. Blaise had him arrested for conducting an illegal investigation and aiding and abetting a criminal suspect, pending his hearing, which was postponed for the next day.

Monster's footprints[]

Main article: The Grand Turnabout

With Edgeworth and Faraday taken care of, Blaise went to the place where the flowerbeds had been on the orphanage grounds. He knew that the body had been buried under one of the three flowerbeds on the left side from the entrance, but he did not know which one. This area was being used as a temporary film lot, and had been designated for a construction project soon afterward, so Blaise broke in and started digging using his mechanic's gloves and some tools from his house. When he was about to leave with the body, however, John Marsh, who had been adopted by Courtney and had become an actor, entered the lot to practice by himself. Blaise hid inside a costume and waited until Marsh left.


Main articles: The Forgotten Turnabout & The Grand Turnabout
Blaise Debeste
Y'know, Sebastian. If you weren't even able to notice something like're really not worthy of being called my son.

The next day, Blaise visited Edgeworth at the holding cell and ended up engaging in a battle of wits with him. Blaise discovered that Edgeworth was immune to his intimidation tactics and was forced to admit that he was trying to frame Faraday. During his hearing, Edgeworth accused Blaise of being the auction conductor. As time went on, Blaise lost the rhetorical vicegrip that he had on everyone: first Faraday, then Jenson, then lead investigator Franziska von Karma. Even Courtney turned on him, revealing that she had been trying to take Blaise down the whole time she was in the P.I.C. Eventually, even Sebastian figured out that Blaise was the killer. Blaise chased Sebastian away by revealing that he had bribed the teachers at Sebastian's school into giving him his top marks, but it was too late for him as Edgeworth proved his guilt. As a result, Blaise screamed and launched an enormous blast of fire from his lighter, which was so hot that it steamed up the tears trapped in his goggles. He didn't realize until too late that his fake beard had caught fire and burned his wig completely, not only leaving him bald but also revealing the burn mark from his earlier confrontation with his victim.

Right before Roland's trial, Blaise had his underlings kidnap Marsh and blackmailed Courtney into trying to get Roland acquitted. However, his subordinates accidentally abducted Sebastian instead. Edgeworth found Sebastian and helped him regain the courage to face his father in court. Edgeworth also soon deduced the true location of Marsh, who was promptly rescued by detective Dick Gumshoe. Thus, Blaise lost his influence over Courtney.

Sebastian desperately searching for the evidence his father had thrown away.

Sebastian had gone to the dump to find the evidence that Blaise had thrown away, only to find a single piece of newspaper containing one of Dogen's bells. However, the newspaper itself had a handprint made of motor oil that was matched with Blaise's gloves, successfully proving that Blaise had thrown away the evidence. Blaise screamed Sebastian's name after taking out his lighter and burning his beard and hair to a crisp. Sebastian was still grateful for all that his father had done for him, even if Blaise hated him. This event stripped Blaise of his authority, allowing the secret SS-5 files to be unsealed. Edgeworth went on to solve the SS-5 Incident, and the last of Blaise Debeste's schemes was laid bare.



Blaise Debeste was extremely selfish and controlling. He loved to use and abuse his power to destroy anyone who challenged or defied him. He used his influence to manipulate cases and cause people to "disappear", including his own wife and a rival detective. At least some of these "disappearances" involved being jailed indefinitely for made-up crimes. He also deceived Manfred von Karma by giving him falsified evidence, and then stripped him of his perfect record when he was caught using a forced confession. Exerting control over everyone else was almost a compulsive need for him, and he was easily angered when he lost control.

His corruption was matched only by his sheer arrogance. He took every opportunity to gloat and humiliate other people. For example, he greeted Franziska von Karma in front of everyone else during a murder investigation in a very embarrassing manner by talking about how she used to sit on his lap as a child. Blaise would even treat his own son this way, constantly calling him an idiot, though Sebastian seemed used to it. When revealed to be a murderous criminal, Blaise told his son, in the cruelest manner possible, that he had only received all of the good grades and awards he was so proud of thanks to his personal connections and influence.

He had a tendency to play with his lighter, which flared up when he became nervous. When it accidentally set his fake beard on fire, he would use the tears trapped in his goggles to put it out. His goggles were often filled with tears, as he would often cry to make himself appear sensitive. Blaise would also tend to tug on his beard when nervous.

Blaise owned a motorcycle and red biker gloves with a skull motif and the word "DEATH" written on the fingertips.


  • His given name "Bansai" (万才) literally means "ten thousand abilities", but is also similar phonetically and character-wise to "Banzai" (万歳), a traditional Japanese cheer or expression of celebration that literally means "ten thousand years (of long life)". Combined with his surname "Ichiryuu", which means "first class", his full name could be translated as "forever number one" - a reference to his superior attitude. Additionally, the first syllables from his given and family names (Ichiyanagi Bansai), if combined together, can be read as "Ichiban" (一番) which means "first" or "number one".
  • His name in the unofficial English fan translation patch is "Blaise Debeste". "Blaise" is presumably a play on "blaze", a word used to refer to a fiercely burning fire; this is likely a reference to his lighter, which blasts out a massive torrent of flame during his breakdown. "Debeste" is a play on "the best". "Blaise" may also be a play on "bless" or "praise" which, when combined with "Debeste", alludes to the meaning of his Japanese name. Additionally, if only the initial for his given is used alongside his full surname, his name can be shortened into "B. Debeste", which could be read as "be the best". Blaise is the name of a mathematician who was a child prodigy and wrote work as a teenager that was at such a level that Descartes believed it was written by his father. This could be seen as an ironic inversion of Blaise Debeste's relationship with his son, who is falsely touted as a prodigy due to Blaise's influence and manipulations. Finally, and perhaps unintentionally, "Blaise" is also the name of a saint who was a bishop in Sebastea (modern-day Sivas, Turkey); "Sebastian" means "someone from Sebastea", thereby linking the names of Blaise and Sebastian Debeste.


  • Blaise and his son Sebastian are the only named prosecutors in the series to date to actually openly wear their prosecutor's badges (with the only other example being the prosecutor in charge of the UR-1 Incident trial, as seen in Athena Cykes's flashbacks). In fact, along with Blaise's own prosecutor's badge pinned on his red jacket, there are many other prosecutor's badges arranged in the manner of military medals, which he acquired from other prosecutors who were deprived of their badges by the Prosecutorial Investigation Committee. Along with his aviator-like biker goggles, this serves to give him a military-like appearance.
  • In-game, when a character is speaking, the noise used as the text appears on the screen usually differs depending on the gender of the speaker; deeper if male and higher pitched if female. Oddly, the tone used for the unseen Chief Prosecutor during Manfred von Karma's flashback to receiving his penalty in Turnabout Goodbyes is the higher pitch, despite clearly being referred to by von Karma as "Mr Chief Prosecutor" and it being made clear that Blaise Debeste was that individual in Gyakuten Kenji 2.
  • Despite his age, Bansai refers to himself as "boku" in the original Japanese version, a first-person pronoun usually reserved for young men. Combined with his playful manner of speech, it has the effect of making him sound like he is trying to be childish and cute.
  • To date, Blaise is one of only two Ace Attorney characters to be alluded to prior to being given a name and face in a different game, with the other being Jove Justice.