Virtual Space "G" Dimension around the colony in its own territory "G catapult gear," Seoul's most popular game machine was summoned to fight on the card housed in a "Batoreivu" Hyuuga, Gekkou, will be seen three drops of not attacked by MS. Gekkou crisis-ridden brother Hyuuga Hyuga and even to repel by their fusion with the dragon the MS Gundam was guided by a mysterious voice trapped in the dimension G.

Haru Irei, who witnessed the first lighting of the 1/1 scale RX-78-2 Gundam in Odaiba, becomes inspired to build Gunpla. Gunpla which is a portmanteau of Gundam Plastic. Haru purchases a one of a kind gunpla, the GPB-X80 Beginning Gundam. After building the kit, Haru, now a Gunpla Builder, and the Beginning Gundam enter the virtual world of Gunpla Battle, where players can pilot their customized Gunpla in team matches or one-on-one fights. Haru must rely on the support of his friends if he is to become a Gunpla Battle Champion and attain the rank of Gunpla Meister.