In Hogwarts there lived a little boy. He was a Ravenclaw student. He wore dark tinted shades and his hair was combed backwards. The boy's name was Zack Riddle.
Some time ago his father had put a curse on his eyes. If he looked at anyone without his eyes covered by the shades it would reverse that person's gender. He has lost a lot of friends because of that incident although he couldn't help it. Zach's father was none other than He-Who-Shall-Not-Be-Named. He was also cursed by his father for NOT getting into his father's desired house, Slytherin.
One day as he was headed to his common room, he bumped into a male slytherin. "Watch where you're going book worm," he said. Zack just shrugged it off, and ignored the boy which infuriated him more. "Are you death or do you not know how to listen to your superiors?"
Zach replied, "I know how to listen. I just choose not to communicate with ignorant people."
By now the slytherin was even more infuriated. He tried to attack Zack, however an invisible force blocked the spell when zack said " Shinra tensai." (Almighty push.)
Zack then lifted his arm and chanted, "Banchotennin." (Universal pull.) The gravity seemed to pull the slytherin closer and closer to Zack. He grabbed the slytherin's neck and took off his glasses exposing his eyes. There was a ripple like pattern in his eyes which soon turned red with black, six-pointed stars within. "Tsukiyumi," muttered Zach. Then the scenery around them changed. The sky became red and a black moon appeared in the sky.

"Welcome to Tsukiyumi. Here i am god, and as punishment for attacking me you shall be raped by professor Snape for the next 72 hours. Professor Snape appeared and took off the poor slytherin's clothes. He took out his member and approached the slytherin. Soon you could hear painful screams in the background.
Three minutes later in real time:
Zack was long gone when the genjutsu began. He left a note for the slytherin to read saying "If you attack me again, next time it will be Dumbledoor. –Zack"
He left the note out openly so it could be easily seen. Then he headed to his common room and unpacked his stuff. He glimpsed at a picture of a young boy and his mother. He thought in his mind, "Mother, how would you react if you saw what a monster father has become?"
Then he fell into a flashback.
At age 13 he was accepted into Hogwarts school. His mother and father Tom was so proud and happy back then. But things went to hell when a crazy drunk muggle appeared and killed his mother. The reason for doing so is still unknown. This affected Zack a lot but it affected his father the most. Tom casted the killing curse "Avada Cadara" on the drunken man. After the death of his wife Tom turned to follow a dark path; a path of pain, sadness, and hatred towards all muggles. This became known as the path of lord Voldemort.