|Dub Name||Kaz Walker|
|Game Debut||Danball Senki (PSP)|
|Anime Debut||Episode 01|
|Appears in||Game, Anime, Manga|
|Voice Actor||Daisuke Namikawa|
|Age||13 (debut), 14 (W)|
|Occupation||Student, LBX Player|
|LBX:|| Warrior, Hunter, Fenrir, Achilles Deed|
Egypt, Gladiator (rental)
|Achievement(s)|| Angra Visdas Best 4|
2050 Artemis Participant (Ban's Team)
2050 Akihabara Kingdom Runner-Up (Jin's Team)
Kazuya appears with kinky, ginger hair tied to the back as a ponytail, and has dark, cerulean eyes. He wears a baby blue jacket, a white dress shirt with its collar popped and red tie, a pair of black pants and black dress shoes.
In his first appearance in W, he is shown wearing a cyan polo tank top, two dress shirts (white and pale blue) with both collars popped, black pants and black dress shoes. He also ties his ponytail a bit higher. After rejoining with Ban and the others, he changed his hairstyle from ponytail to stand-up dreads sporting a green headband. He wears black tank top, khaki pants, green armbands, pair of black boots and looks more masculine. He also has a scar-like mark on his right cheek.
In WARS sketches he has less dreadlocks and is seen wearing grey t-shirt, black vest, green pants and googles on his neck.
In original series Kazuya appears to be friendly to those around him, but also unconfident and gives up very fast when it comes to matters too difficult to deal with. Thus he will never hesitate to act harsh to those who attract harm towards his friends. This behavior was shown towards Jin Kaidou when he was siding with his adopted grandfather's evil agenda. But the latter will eventually subside as Jin proved himself as one of Ban's comrades.
In W series Kazu disappears for a long period of time after being kidnapped by Detector. With the revelation of Detector's identity and the true motive of his plans, Kazu rejoins his friends and the Seekers. He's gotten more muscular, more confident, and became a stronger fighter. While his role isn't as prevalent as the original series, he's still a key player in stopping Mizel.
Season 1Aoshima Kazuya, also known as Kazu, is shown in the season in an LBX shop with Ban and Ami and is played out through the season as one of Ban's good friends to battle with.
During their usual visit to the Kitajima Model Shop, he battles Ban and his rental Musha with his own Trooper and loses. However, he jokes and yet questions Ban’s mother allowing his ownership of an LBX after his father’s disappearance.
The next day, his cowardice shows when he notices Ban, Ami, and Ryuu, another kid from their class, searching for information about Hanzou and his gang. However, he refuses and advices them to let the situation go. Eventually, he assists Ban and Ami against the Devas after Ryuu and Buld, Tetsuo and Nazuu, and even Riko and Queen are eliminated during their three on three battle. Kazu sends out Warrior and uses his tracker to sense the location of Kinji’s LBX by utilizing a magnetic bomb to stun and cancel out Mad Dog’s Camouflage Attack Function so Ban can finish him off afterwards. The defeated Devas run off and he joins Ban and Ami into entering Gouda’s hangout in the slums behind the school.
Things get a little more serious when his LBX Warrior got destroyed by Hanzou Gouda when the group of friends were trying to get the Achilles armor back from him. He got very depressed about it. Then he started looking for a new LBX, but somehow this one stall he went to during the episodes was a trap, ending up being controlled by Innovator and using Egypt in a battle against Ban, who wins the battle, getting Kazu back to normal. Later, the group of friends were called by a mysterious man to do a mission related to the president who was actually about to get assassined by Innovator and somehow it ended up getting Kazuya to receive a new LBX named Hunter. And thanks to him regaining his confidence, they were able to defeat the assassin targeting the Prime Minister.
During the Angra Visdas tournament, he got through his first round after nearly being blindsided by his opponent crying to get Kazuya to drop his guard. Angry, Kazu took him down in one shot. In the second round, he defeated his opponent in one shot. Before Ban's semi-final match, he promised that they would battle in the finals. However, he eventually lost to Jin Kaidou in the semi finals. In spite of his loss, he continued to support Ban in his best friend's final match.
In Artemis, him and Ban were sent out to battle the American Champions and he proceeded in defeating Johnny’s Ortega in the first round of C Block, and won alongside his team members until they reached the finals against Team Morigani. At first, Kazu was the first to recklessly place Hunter in danger and needed Achilles and Kunoichi to bail him out. Once they escaped, his Hunter and Kunoichi ran around in what appeared to be leading Keita's team away from Achilles but it turns out to be just Achilles' shield as Kazu fires at Keita attempting to eliminate him. However, he ends up eliminating Kouji who sacrifices Buld to save Keita's Warrior. With one eliminated, he gets Hunter to reach high ground and starts sniping Reina and Keita, and Reina decides to deal with him. Kunoichi reaches the platform and knocks away Hunter's rifle, but Kazu retaliates with Hunter kicking Kunoichi into the air and Break Over Reina's LBX with his hissatsu function, Stinger Missiles. With his weapon gone, Kazu takes Reina's lance and Hunter charges with his team to defeat Warrior but he ends up being eliminated alongside Ami due to Keita using Trident. At the end of the Artemis Tournament, he hugged Ban for winning.
In episode 28, Kazu and Hunter stop the Innovator’s attempts to break into Tiny Orbit with the help of Ami and her new LBX Pandora. He alongside the others journey to Akibahara kingdom to find Otacross. As everyone clears the trials, Otacross challenges Ban, Kazu and Amy In a three on battle against his ZX units. They combine into Perfect ZX3. Kazu tries to blast Perfect ZX3 with the Huntsman rifle but it fails. Otacross activates Mega Thunder Cross, but in Kazu sacrifices Hunter to save Odin and Pandora. He apologizes to Ban Ami, telling them “it’s the only thing I could do right”. Thankfully, episode 29 reveals that he shot Perfect ZX3’s motor function, leaving it open for Odin and Pandora to defeat him.
While the others practice for Akibahara he and Ami prepare by training at the Kitajama Model Shop. Hunter fires at Pandora and eventually stops. It’s part of his trap by leaving the Huntsman Rifle where Pandora and Ami can’t see so he can use a sneak attack, but Ami catches onto the idea at the last second and kicks Hunter away. He explains that since his rifle was ineffective during their matches with Otacross and Hades, focusing on close range could improve his efforts.
In episode 33, Kazu and Kin fight together in the second round of Akibahara Kingdom against Ota Black and Ota Pink. When Ota Pink/Bilinbird V runs to Jin’s LBX out of love for his coolness, Kazu takes the opportunity to lock on to her LBX perfectly and has Fenrir finish off her LBX with Hawk Eye Drive. He laughs at Jin’s complete seriousness dealing with his opponents antics.
In episode 34, he, Ami, and Jin face off against Ban’s team. Kazu reveals that Ami helped train him in close combat and uses that against Hakai-OZ and Odin. The latter traps Fenrir in debris from the stadium, but he breaks free as Daiki and Hanzou are eliminated. Kazu uses his LBX to get ready to defeat Ban, but Ban uses Gungnir and defeats his LBX alongside his team. He congratulates Ban on making it to the final battle.
During the siege on Tiny Orbit in episodes 36 and 37, he, Ami, and Ban provide backup as the last defense on the staircase. After the Innovator's army gets past the first line, Ami notices the pattern that the AI of the Inbits are processed on, so they have to have a pattern. Using that logic, Kazu works with the others and uses Hawk Eye Drive. As the Innovators send the fort tank Bardoma as a last resort, he heads with Ami and Gouda up to the fourth floor in order to protect Yagami and the agents.
Season 2In Episode 1 (W), he and Ami were waiting for Ban in TokioSIA to watch the Tiny Orbit's latest announcement. With the reveal of Achilles Deed, he became excited and wanting to have a battle, so they planned to go to Kitajama Model Shop. All off a sudden, the event got interrupted when the brainjacked LBXs rampaged TokioSIA, and Kazu with Ban and Ami fought against them. Using laser rifles in tandem with Odin, the two were able to destroy a large number of LBX, but as Achilles Deed begun leading the LBX, the trio split up and quickly became overwhelmed. Unfortunately, his Fenrir got destroyed through an assualt of enchaned Ortegas and Warriors, with one stabbing Fenrir as the finishing attack. Proceeding those events, a shocked Kazu was gassed and kidnapped by Detector along with Ami. While Ami has already been saved by Ban and his crew, his location is yet unknown.
In Episode 29, Kazu reappears as a Slave Player in Camberlin with a new appearance during a battle between fellow Slave Player Asuka and NICS members Ban Yamano and Hiro Oozara only to turn against Asuka, breaking-over her Vampire Cat thus freeing her from enslavement. It was revealed that he was brainjacked, until an accident short-circuited his collar, thus he was not controlled like the others. Understanding the masked man's identity and Detector's true nature, he assisted the masked man from his own will, all the while assisting Ban against the true enemy.
Throughout the rest of the series, he along with his friends attempt to try and stop Hiyama Mami's plan to take over the world, which she thought was her brothers, Lex's, dieing wish. Ban and Hiro managed to stop and defeat her LBX Zeus and then convinced Hiyama that Lex's dieing wish was not to destroy the world. After they completed their mission, they all went back to their regular lives. Kazu along with Ami and Asuka participated in a special lecture on LBX's at the assembly stage at 15th Street's park, to try and promote everyone to use LBX's and that they're safe and fun.
After that, there was news about a new LBX rampage, and a strange LBX was shown at every scene from the rampages. Soon after they found out it was Mizel's doing, and was the one controlling the LBX's. In episode 48, Kazu obtained the Luminous Shooter from Kensuke Yuuki of Tiny Orbit and used it to defeat and destroy Ban's LBX after it had been brainjacked by Vector.
In the crossover movie, he appears along with the whole team to try and stop the LBX invasion controlled by San in the Holy Road stadium. After Ban, Hiro and the others rescue Fran, he and Ami disappeared because Fran erased them when Ban and Hiro walked first, leaving Kazuya and Ami to walk behind, giving Fran time to erase them.
Danball Senki Wars
To recruit Kazuya, he needs to be defeated first in the Under-Ranking Battles. After doing so, he will be available on the LBX Player List.
He will have the following information:
- Level at Recruitment: 100
- SC Cost: 50050
- Specialty Weapons:
- LBX: Hunter
- Armor Frame Levels
- Knight: 50
- Strider: 50
- Brawler: 50
- Wild: 100
Danball Senki Wars
- Quick Snipe (Initial)
- Bolt Cross (Initial)
- Beam Shot (LV 5)
- Bloody Rain (LV 9)
- Laser Cutter (LV 13)
- Rise Shot (LV 17)
- Heat Fence (LV 21)
- Rain Bullet (LV 25)
- Hawk Eye Drive (LV 29)
- Triple Energy Bomb (LV 33)
- Satellite Laser (LV 37)
- Gravity Sphere (LV 41)
- Flame Burst (LV 45)
- Black Storm (LV 49)
- Hellfire (LV 54)
- Great Bomber (LV 60)
- Kazuya's new facial appearance in the W season, resembles Crow Hogan from Yu-Gi-Oh! 5Ds.
- It was never explained why Kazu changed his image during W season.
- Kazu's emotional state in the mission to stop Prime Minister's Zaizen's assassination are different in the anime and the video game. In the video game, he was calm and collected about the whole situation whereas in the anime, his confidence had reached an all time long and Ami & Ban had to convince him otherwise.
- Ironically, during season one, Kazu used Gun style with his first LBX, but throughout the series, all his LBX post Warrior have used Rifle Style. The reverse situation occurred in W where after Fenrir was destroyed, he used Gun Style until he got the Luminous Shooter.