This monster is a physical manifestation of the shell protecting the Heart of the Land at the center of Gaea, which came into being when Jacqli began singing EXEC_SPHILIA/. to converse with Luca's heart, thus making the party unknowingly fight against it in her behalf. This boss is identical to the Mind Guardian (Cloche) boss, the only differences between being the route in which they appear and their respective sprites.