Legacy of the Seven Stars

Legacy of the Seven Stars (七星の遺産 Shichisei no Isan) is a sealed object that can bring absolute destruction to the Tokyo Area.

Description
A deadly object that can bring destruction upon the Tokyo Area, able to destroy the Monoliths encompassing the secluded areas. Seitenshi gives Civil Security Corporation the duty to retrieve the case in which this object is sealed, presuming the Original Gastrea, that invaded the Tokyo Area a day prior, ate it; or, entered its body whilst the Gastrea began the process of Shape Corrosion. The Legacy of the Seven Stars can be used to summon the calamity that will destroy the world, Stage V Gastrea, otherwise known as the Zodiac Gastrea.