Battle Weapon
For day three of the tournament, containers with random weapons are placed in the battlefield for the Gunpla Fighters to use in their battle; each contestant is assigned a container number to use. Sei and Reiji are assigned to battle Luang Dallara, who already gave them trouble at the battle royal. Worsening the situation is Reiji's wrist injury from a street fight outside the arena grounds.
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More from this season
S1 E1
Sei and Reiji
Sei Iori is a talented Gunpla builder, but lacks the confidence to become an effective fighter in a Gunpla Battle. One day, he meets Reiji, a mysterious red-haired boy, who displays his exceptional skills as a Gunpla Fighter by defeating Susumu Sazaki with Sei's newly constructed Build Strike Gundam.
S1 E2
The Crimson Comet
As Reiji copes with adjusting to Tokyo life, he picks a fight with school council member Monta Gonda. Sei and Reiji defeat Gonda in an exhibition Gunpla Battle, but are immediately bested by Tatsuya Yuuki and his Zaku Amazing.
S1 E3
Full Package
Sei completes an upgrade to the Build Strike Gundam while Mr. Ral gives Reiji an orientation on Gunpla Battle.
S1 E4
Gunpla Idol Kirara
Sei falls in love with a mysterious girl who is into Gunpla, unaware of her true intentions in Gunpla Battle.