I Would Like To Know Where We're Going, Since It's Getting Kind of Dark

Under the tutelage of the great Sephiroth, you were set to become one of the greatest SOLDIERs known to man. After Sephiroth suddenly declares he wants you to become his second-in-command, the stress rises, as does your desire to succeed, and Sephiroth seems more and more determined to meld you to fit his vision.
(Originally based off of a story from videogameyanderes on Tumblr!)