
Originally Posted by
Ultimania Omega Guide
Shortly after Cloud was apprehended when he broke into the Shin-Ra building to rescue Aerith, the Reunion began. Hojo expected the headless main body to be the focal point for the Reunion once it began, but in reality, it was the Northern Crater. The scattered Sephiroth Clones and the main body of Jenova within the Shin-Ra building all began to move. Jenova shattered its containment case, murdered President Shinra, escaped from the Shin-Ra building and began to wander the world. Now, Jenova's mimic abilities caused the main body to take on Sephiroth's voice and appearance, which it kept hereafter during its appearances in various places.