Kidou Butou Gaiden: Gundam Fight 7th

The story is a prequel to the Mobile Fighter G Gundam TV anime series, taking place during the 7th Gundam Fight, 24 years before the events of the anime. It features Master Asia piloting the GF7-013NJ Yamato Gundam, representing Neo Japan. It also showcases how he became known as the King of Hearts, as well as his work as part of the Shuffle Alliance. (Source: Gundam Wiki)