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Sei Iori (イオリ・セイ)Unit: GAT-X105SEI Build Strike Gundam
A 7th-grader attending Seiho Academy. An only child, his family owns the shop Iori Models, and he's been a Gunpla fan from a young age. Both his building technique and his Gundam knowledge put many adults to shame. However, he's a poor Gunpla Battler with a long record of washing out in the first round.
It's confirmed that Sei is the creator of a customized GAT-X105 Strike Gundam model, the GAT-X105SEI Build Strike Gundam: A model focusing on mobility, it specializes in quick, hit-and-run attacks.
Gundam Build Fighters has tons of memorable characters who are distinct and have fairly good development. Each of them gets their turn to shine throughout the action-packed series, which lends to how much fun the series is to watch from start to finish!