Although Tsubaki and Sora were rescued, the mirror was scattered in Aso... After gaining the power of two bronze bells, Miwa was finally freed from the curse of the barrier. And then, Himika, who carried out a large air raid on all of Kyushu, disappears somewhere in the Yachi no Orochi. After making contact with Dr. Otoshi at the Build Station, Senjiro leads all remaining forces and flies into space on the Build Shuttle!