The planet named Bemera-4 where Yamato stopped for supply is Earth-like world. Niimi and Itou lead a mutiny to abandon Yamato's mission, and they want to let people emigrate from Earth to Bemera-4.

Shinohara uses hyperspace gate network, and goes on a scouting flight to Balan. Unfortunately, there are ten thousand of the battleships of Gamilas forces for naval review.

Yamato, the Carrier Strike Group under the command of Domel, the two forces confronting each other in the Rainbow Star Cluster.