This is a list of fictional characters from the Japanese anime series Gundam Build Fighters.
Characters Iori Hobby Shop
Main Gunpla: GAT-X105B/FP Build Strike Gundam Full Package; RX-178B Build Gundam Mk-II; GAT-X105B/ST Star Build Strike Gundam; GAT-X105B/CM Build Strike Gundam Cosmos; SB-011 Star Burning Gundam Other Gunpla: XXXG-01W Wing Gundam Sei Iori is a 13-year-old boy whose family runs in the fictional Tokyo district of . As his father Takeshi was first runner-up at the second Gunpla Battle World Championships, Sei is very talented at building Gunpla kits, but his piloting skills are very weak due to a subconscious desire to avoid damaging his Gunpla. Because of this, he has Reiji pilot his Gunpla while he provides navigational and tactical data during battle. He is shown to have feelings for his classmate, China Kousaka. The teamwork between Sei and Reiji gives them a competitive edge that earns them the Japan 3rd Block Championship and a shot at the 7th Gunpla Battle World Championships. The duo fight their way to the final round of the tournament, where they defeat their longtime rival Tatsuya Yuuki (a.k.a. Meijin Kawaguchi the 3rd) and become World Champions. In the very last part of the series is shown that he actually is quite skillful as a Fighter when he almost defeats Tastuya Yuuki when the battle for fun with their machines crudely repaired before the last Plavsky Particles disappear. Sei finally gains confidence in being a Gunpla Fighter himself as the defending champion one year later, to keep his promise to Reiji in becoming stronger so, when Reiji finally comes back they can battle each other in earnest.
Main Gunpla: GAT-X105B/FP Build Strike Gundam Full Package; RX-178B Build Gundam Mk-II; GAT-X105B/ST Star Build Strike Gundam; SB-011 Star Burning Gundam Other Gunpla: RB-79 Ball; LM312V04 Victory Gundam; GPB-X80 Beginning Gundam is a mysterious red-haired boy who befriends Sei at a park. He gives Sei an Arista, telling him he will be at his side whenever he wishes. During a Gunpla Battle between Sei and Susumu Sazaki, Reiji suddenly appears and commandeers Sei's Gunpla, giving him a surprise victory. Reiji also shows adaptability with any Gunpla, as he can defeat veteran Gunpla Fighters with just an RB-79 Ball. Despite his natural piloting abilities, Reiji has no concept of everyday life such as school or commerce. Reiji is a very outgoing person who loves to eat. He reveals himself to Sei as a prince from a country called Arian on a distant planet; one day, he stumbled upon a treasure that enables him to travel to Earth and back. Despite earning the trust of Sei and Rinko, Reiji has difficulty convincing them of Arian's existence. After winning the 7th Gunpla Battle Championships with Sei and destroying the giant Arista that produces Plavsky particles, Reiji returns to Arian. Later, he borrows Aila's Arista and comes back to Earth, just in time to help Sei in a battle against the Gunpla Mafia, and to finally have a rematch as he promised to Sei.
Rinko Iori is Sei's vivacious mother and the current owner of Iori Hobby Shop. She often acts as a matchmaker for Sei and China.
Gunpla: RX-78-2 Gundam; PF-78-1 Perfect Gundam Takeshi Iori is Sei's father, who placed runner-up at the 2nd Gunpla Battle World Championships five years ago. Ten years prior to the series, Takeshi was involved in the development of the Gunpla Battle System. He left Japan to promote Gunpla Battle worldwide and entrusted his hobby shop to Rinko and Sei. Takeshi currently travels around the world as an official Gunpla Battle referee to hunt down illegal activities on the sport. A week before the final round of the world tournament, Takeshi reunites with his wife and son.
Gunpla: MS-07B Gouf; MS-07R-35 Gouf R35 is a regular customer and local resident with an uncanny resemblance to the Zeon character from the original Mobile Suit Gundam series(down to the same voice). He is usually called "Lieutenant" by everyone but the main cast. He has a deep knowledge of Gunpla Battle and an affection for Rinko. During his spare time, Mr. Ral mentors Sei, Reiji, and China, and hangs out with veteran Gunpla Fighters at a bar. Nicknamed the , Mr. Ral appears to be very well known and respected amongst even the best of the Gunpla Building and Battling communities, though the reason as to how he gained this recognition has yet to be fully explained, it is not until the last chapter when he shows a glimpse of his true power when he and Master Chinan rushes in middle of the last fight and wipe out hundreds of enemy machines in matter of seconds, leaving the main cast astonished of how ridiculously strong they are. The only ones in-universe who do not appear to know his background are the main cast, though they still view him as a very close friend.
Seiho Academy
Gunpla: KUMA-03 Beargguy III China Kousaka is Sei's classmate and a member of the school committee at . She is also a gifted painter and a member of the school's art club. She has won the grand prize at several art shows for her paintings; the most recent of which is based on her customized Beargguy III. Her father runs Cafe Restaurant Kousaka, which is located near the school. Being a close friend of Sei, China develops an interest in Gunpla Battle. She is shown to have a crush on Sei, which everyone, including Sei himself, seems to be aware of to some extent, and she shows some joy when some believe them to be a couple, even though they have not made it official themselves. Rinko often encourages China to make the first move and confess her feelings for him, though she has yet to do so. Six years after the events of the first series, China moves to Paris to continue her art studies. Also its shown that Sei is very close hinting that they may be a couple.
Gunpla: RX-93ν ν Gundam Vrabe (GBF:A); RX-93-ν2V Hi-ν Gundam Vrabe / RX-93-ν2VA Hi-ν Gundam Vrabe Amazing (GBF:A); MS-06R-AB Zaku Amazing; PPMS-18E Kämpfer Amazing; PPGN-001 Gundam Amazing Exia; PPGN-001/DM Gundam Exia Dark Matter; MSM-07-A Amazing Z'Gok Tatsuya Yuuki is the president of the student council and captain of the model-building club. Having won the Japan 3rd Block Championship in the previous year, he is the school's top Gunpla Fighter and Sei and Reiji's rival. His piloting skills earned him the nickname . In the middle of the current Gunpla Battle Japan 3rd Block Qualifying Tournament, Tatsuya is forced to bow out of competition and take an indefinite leave from school due to a personal emergency, which centers around his involvement with Plavsky Particle System Engineering (PPSE). However, he once again faces Sei and Reiji in an unsanctioned Gunpla Battle that ends with both Gunpla destroyed. Following this battle, Tatsuya resurfaces at the 7th Gunpla Battle World Championships as the PPSE Works Fighter , wearing sunglasses as a nod to Quattro Bajeena of Mobile Suit Zeta Gundam. As the current Meijin, Tatsuya vows to bring back the fun and enjoyment of Gunpla building, which was disregarded by his predecessor's philosophy of absolute victory. He fights his way toward the final round of the tournament, but interference and mental manipulation by Chairman Mashita hinders his chances of winning the championship, as he loses to Sei and Reiji, freeing him of his mental control, regretting that Chairman spoiled what both sides wanted to be a fun and earnest battle, leaving the result as irrelevant. Following the destruction of the giant Arista that is used to create Plavsky particles, Tatsuya battles Sei and Reiji for one last time with their crudely repaired Gunpla before the particles in the arena disappear. He gives up his moniker as Meijin and settles down as a consultant for Gunpla builders. In Gundam Build Fighters Try set seven years later is shown that he still retains the title as Meijin Kawaguchi III and have won several times the World Championship in the meantime.
Gunpla: MRC-F20 Gold Sumo; CONCEPT-X 6-1-2 Turn X Monta Gonda is an executive member of the student council. Due to his sideburns and tall stature, he is often referred to as a "gorilla" by other students.
Akemi Ohtake is Sei and China's classmate.
Yukari Samejima is Sei and China's classmate.
Gunpla Fighters
Main Gunpla: XXXG-01WF Wing Gundam Fenice; XXXG-01Wfr Gundam Fenice Rinascita; Gundam Fenice Liberta Other Gunpla: XXXG-01W Wing Gundam Ricardo Fellini is the reigning Italian Gunpla Battle champion. He rides a cream-colored Vespa scooter with sidecar. Prior to the 7th Gunpla Battle World Championships, Fellini acts as a coach and sparring partner for Reiji, after the boy is introduced to him by Mr. Ral, and acknowledge him as his equal in terms of skill. Nicknamed the , Fellini is a playboy, and sometimes attempts to court women by offering them a Gunpla; a fault that lands him in hot water on occasion, especially at the World Tournament where the ex-boyfriends of many of the women he courted band together to take revenge against Ricardo for stealing their girlfriends. Despite his playboy easygoing attitude when it comes in terms of Gunpla Battles he is deadly serious as shown in his Tournament Qualification Match against Reiji and Sei, as he was already qualified and the boys needed to get points. He could have lost on purpose to spare his Gunpla of damage, instead his pride as Fighter drove both sides to a head-to-head match that nearly completely destroyed both machines ending the battle in a draw. Fellini makes it through the finals, but is defeated by Aila Jyrkiainen in the quarterfinals after Kirara convinces him to concede instead to selfdestructing his Fenice in an attempt to take his opponent with him as he wasn't set to lose a match. Is shown that, despite his playboy status he has reciprocated feelings for Kirara. He returns at the Gunpla Eve festival with the Wing Fenice rebuilt as the Gundam Fenice Rinascita.
Main Gunpla: GX-9999 Gundam X Maoh; XM-X9999 Crossbone Gundam Maoh; Gundam X Jumaoh Other Gunpla: MSA-0011 S-Gundam Mao Yasaka is a Gunpla Fighter from Kyoto and the reigning Japan 5th Block champion. He learned his skills from the , which he hopes to inherit from Master Chinan. As his master has long feared the talents of Takeshi Iori, Mao is sent to Tokyo to challenge Takeshi's son Sei and discover the extent of the Gunpla world. Initially intent on becoming Sei's rival, the two quickly become friends, and they have high respect for each other and their skills at Gunpla building. Mao is also shown to have some sort of special secret understanding of how things work in Gunpla battles, as he is able to use his Gundam X Maoh's Hyper Satellite Cannon at will without the need of the moon-based Microwave System. Carrying no money with him, Mao uses his Gunpla collection as payment. Despite breezing through the first half of the championships undefeated, Mao is eliminated by Sei and Reiji in the first round of the final tournament. He is left heartbroken for weeks after Misaki, his love interest, slaps him before their first date for attempting to kiss her; when she returns during the Gunpla Eve festival, Mao regains his happiness.
Main Gunpla: Sengoku Astray Gundam; 忍ノ参 Ninpulse Gundam Other Gunpla: MSN-00100 Hyaku Shiki; Fuunsaiki