Oda is a tall man, being slightly taller than Kiryu in height. It can be assumed that his build is similar to Tachibana's in muscle and size. Oda has dark brown hair with a middle part and it is long enough to nearly reach his shoulders. He has a faint moustache.
Oda wears a yellow, orange, and brown patterned dress shirt, a beige pinstripe blazer with a red pocket square in a "Two Peaks" fold, a red leather belt with a gold buckle, white slacks and a pair of oxblood smooth toe oxfords. He also has pentagon shaped diamond earrings.
Despite his seemingly flippant attitude, Oda is both a fearless businessman and criminal man, willing to resort to violence if it could justify the means. Some people even consider him to be even more ruthless than the yakuza. He was also clever enough to cover up the fact that he was a mole working for Shibusawa, as Tachibana possessed vast amounts of intelligence on Kamurocho and its criminal underworld. Nonetheless, he is a coward when it comes to his past sins, as seen in how he attempted to beat and kill Makoto and Kiryu after seeing Kiryu protect her.
Two years before the events of Yakuza 0, Oda was a member of a Chinese mafia who used their money to migrate to Japan on a stowaway trip. Arriving at Sotenbori, he committed any crime, such as armed robbery and selling girls to sex traffickers, to make a living. One of the girls he sold was Makoto Makimura, whom he found on the streets and sold to a Korean syndicate, where she was caged and sexually abused. He also formed a gang where members would don a bat tattoo on their arms. There, he met Tetsu Tachibana. Oda was impressed by Tachibana's fighting prowess and as a result, elected him as the new leader. After Tachibana lost his arm whilst fighting, Oda vowed to never betray him. He learns that Makoto is Tetsu Tachibana's sister while watching a documentary on Chinese war orphans. Fearing Tachibana's reprisal, Oda did whatever it took to conceal the horrific secret.
Yakuza 0: 1988
Oda's first appearance is at the Namase Bar looking to pay the owner of the bar compensation for him to leave the premises. It is then that he meets Kiryu—whom attempts to prevent him from further stalling the business—and a noticeable tension is already formed. After he tosses the money towards Namase believing that he has already swayed him into leaving the building, Oda exits and declares that Kiryu's 'hero fetish' would eventually end up in his demise.
The two once again cross paths in a Champion District lot after Kiryu has very clearly defeated a group of residents of said district. When he states that he had been scouted by Tetsu Tachibana himself in hopes to join Tachibana Real Estate, Oda became incredibly skeptical and elected to call the man in question as to his intentions behind hiring the 'ex-yakuza'. After a seemingly brief conversation with Tachibana, he states that Kiryu should hurry along and go to meet with his boss at once; walking away as he makes this suggestion. In reality, he returns to the Real Estate building to test Kiryu's resolve and see if he is really capable in joining their firm.
Eventually it is discovered that Makoto Makimura is the owner of the Empty Lot, and they travel to Sotenbori to get her. They go to Camilla Grove and Oda waits outside while Kiryu gets her from Masaru Sera. Upon Makoto and Oda's “first encounter” it is apparent they both seem to recognize each other almost immediately. He asks her in the car if he has done something to offend her, to which she does not respond to. As they are driving on the highway back to Kamurocho, they are ambushed by Keiji Shibusawa and his men, and the driver is shot. Oda takes the wheel while Kiryu holds them off.
After that, they eventually pull off the highway and stop at a construction site, where Oda puts the driver's dead body in the trunk. Inside the construction site, they come to have a moment's rest, where Oda, seemingly frustrated by the situation attempts to slap Makoto, but is stopped by Kiryu. Still annoyed, he “exits" to check the area, leaving Kiryu and Makoto alone. Makoto then tells Kiryu that she knows Oda, to which he is very confused. Almost immediately after, Oda is revealed to have been listening to the conversation and points a gun at Kiryu and Makoto. He approaches, grabs Makoto, and points the gun at Kiryu. Makoto pulls a small blade from her walking stick, and stabs Oda in the leg, immobilizing him. Kiryu then takes this chance to charge at him, gets the gun and points it at Oda. Makoto asks Kiryu to see if he has a bat tattoo, which he does. Kiryu then asks Oda to explain everything.
After recounting his story, Oda decided to redeem himself by using himself as a shield so that Kiryu and Makoto could get away from Shibusawa's men. He also tells Kiryu to tell Tachibana that he really loved him. Oda holds off some of the attackers but is shot repeatedly. Before his death, it is revealed that Oda was a mole for Shibusawa the entire time, presumably out of the desire to get rid of Makoto, thus removing his guilty conscience. However, Oda saw how hurtful his actions were and quickly terminated his cooperation with Shibusawa. Shibusawa asks Oda if he knows where Makoto is. Oda says he doesn't know anymore and mocks him for being beaten by Sera and not seizing the opportunity to catch Makoto earlier when they were in Sotenbori. Offended by the remark, Shibusawa tells Oda that capturing Makoto in Sotenbori was Nishitani's job and that he wasn't the only underling that failed him. Afterwards, he executes Oda with a gun.
Oda's fighting style shows his proficiency in using the tonfa. If by chance the players miss the QTE in Chapter 5, Oda will slap Kiryu upside the head. He attempts to do it again, but Kazuma Kiryu blocks him the second time. He uses Okinawa Kobudo during his Boss Fight with Kazuma Kiryu.
- Oda was the one who introduced Kiryu to the Serena bar, which would feature and be visited by Kiryu in every subsequent game after Yakuza 0. It was a coincidence that Nishiki had already been a regular at the bar when Kiryu first went there on Oda's suggestion.
- Oda shares a somewhat similar appearance to Shun Akiyama, a playable character in the two main series predecessors of Yakuza 0, Yakuza 4 and Yakuza 5. This is similar to fellow Yakuza 0 character Wen Hai Lee, who bears a strong resemblance to Taiga Saejima (also a playable character in 4 and 5).
- His outfit is a recolor of Christina's.
- In Yakuza Kiwami, Oda is briefly referenced in the substory Bad Ass Dads. If Kiryu answers the first question with "My clothes", he will be reminded of the time Oda reprimanded him for his choice of a white striped suit.