Shôgeki: Kosumo ribâsu no isan

After making it to the Moon, Governor Barrell of the Garmillas faction informs Kodai that there is something he needs to witness. He orders Keyman to escort him to the Time Fault, which is a sub-dimension where time is 10x faster than in the outside world. There, the Wave-Motion Gun Fleet is being constructed, much to Kodai's chagrin.