Sephiroth fled the Shinra as a teenager, along with the last two members of the Cetra race. Fortune smiled upon them all when they wound up under the protection of Avalanche. Years later, he attempts to help an old friend, and ends up on an epic journey that will inevitably pit him against the Shinra, his past, and his own dark desires. AeriSeph, Zack/Cissnei.

Side-story from my alternate timeline story "The Living Key", set a few months after the end of Part 1. As Cosmo Canyon's residents look forward to an upcoming wedding, fourteen-year-old Sephiroth travels from Banora to attend the festivities. However, he and his loved ones soon discover that there are still some past issues that still haunt them...