In the near future, GunPla Battles, competitions that pit Gundam plastic models against each other, have become popular worldwide in the Second GunPla Boom. Iori Sei, a first-year middle-school student and the only son of a model shop owner, is talented at building GunPla, but inexperienced in the GunPla Battles. He encounters a mysterious boy named Reiji, who happens to be an accomplished Gundam Fighter. Together, they strive for the GunPla Battle world championships. Sei's customized GunPla is the Build Strike Gundam.

Source: ANN

Note: The first episode was pre-aired at a special event on 04.10.2013, regular TV broadcast started on 07.10.2013.

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Other: Kidou Senshi Gundam
Other: Mokei Senshi Gunpla Builders Beginning G
Sequel: Gundam Build Fighters: GM no Gyakushuu
Side story: Gundam Build Fighters: Battlogue