The GAT-X105B/EG Build Strike Exceed Galaxy, commonly known as Exceed Galaxy, emerges as a remarkable Gunpla within the Gundam Build Metaverse, meticulously crafted and operated by Sei Iori. This Gunpla is a reimagining based on the Entry Grade 1/144 GAT-X105 Strike Gundam, designed to be accessible to builders of all skill levels.

In the pursuit of uncovering novel potential within the Build Strike, Sei delves into the Entry Grade Gunpla, specifically tailored for builders regardless of their experience. The culmination of his efforts results in the creation of the Build Strike Exceed Galaxy. This evolved iteration incorporates the cutting-edge "EG (Energy Glitter-circulation) System," a groundbreaking energy super-light circulation mechanism inspired by the RG System. This system enables multidimensional boost-ups, adapting dynamically to various battle situations.

To enhance versatility, Sei strategically integrates hardpoints across different components of the Build Strike Exceed Galaxy and its associated equipment. This ingenious addition facilitates a diverse range of weapon loadouts, aligning with Sei's vision of a Gunpla characterized not by a final form but by limitless potential. The name "Exceed Galaxy" encapsulates this aspiration, symbolizing the boundless capabilities that Sei envisions for this extraordinary Gunpla.