10 years after the victory of Sei and Reiji at the 7th Gunpla Battle World Championship many things have changed the way gunpla battle is played and it is nearly time for the 17th Gunpla Battle World Championship. There will be many new faces entering the tournament and there will also be seasoned veterans, but that only makes things all the more interesting.

Moving Forward spin-off. Kiyoshi Hideaki is your average high school student, with a little exception. He is the sole heir to a wealthy zaibatsu family. And after meeting a strange girl that is bent on introducing him to Gunpla Battle, his life gets even weirder. After discovering truths about himself and his family that had been lost, he finds just what he needs to free himself.

Haru Kiyoshi is an anti-social shut-in who thinks friends are nothing more than things people say they have to make their lives more interesting, but he does have one dream. That dream is to become a better Gunpla Battler and by doing so leave behind the darkness and despair of his past and start anew.