A boy named Sei, who has a talent for building small plastic robots that fight in virtual reality, teams up with a boy named Reiji, who is extremely adept at piloting said robots.
EPISODE 1
Sei and Reiji
Even though Reiji has never used Gunpla before, he overwhelms Sazaki's Gunpla with his superb technique; and so, the Gundam Build Fighters are born.
EPISODE 2
The Crimson Comet
Using Sei's Build Strike Gundam, Reiji wins a total victory in his battle with Gonda; then a crimson Gunpla appears before them.
EPISODE 3
Full Package
On the day of the championship, Sei has somehow completed the Build Strike, but Reiji is nowhere to be found.
EPISODE 4
Gunpla Idol Kirara
Mihoshi leaves a strong impression on Sei, and as he advances through the championship, she repeatedly comes to see him.
EPISODE 5
The Strongest Builder
A young Gunpla fighter, who has already won a place in the World Tournament, visits the store because he is interested in meeting Sei.
EPISODE 6
A Reason to Battle
Now that Yuuki has suddenly withdrawn from the competition, Reiji has lost his purpose and aimlessly wanders the streets.
Yui Ishikawa
Yuuichi Nakamura
Takuya Sato
Mitsuishi Kotono
Mikako Komatsu
Saori Hayami
Minami Fujii
