Set in Ark, the land of Musha Gundams, Musha Retsuden is the story of the adventures of Retsumaru and his friends, righting wrongs and enacting justice. Claims to be affiliated with SD Gundam Force, but has more in common with the original Musha series.

A collection of side-stories and back-stories for several main characters from "SD Gundam Force," as well as a chapter dedicated to related data.

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.