Suspicious tornadoes occur in Ise Bay, causing damage to ships sailing in the vicinity one after another. Uzuki, who went to investigate with the Big Shooter, loses consciousness after being attacked by the Haniwa phantom Gilara who was lurking in a tornado. Hiroshi that went to the rescue was also caught by Yamata no Orochi, who was waiting for him. Gilara's magic hand approaching the Build Base. Mechadon is the only one they can rely on.