You were a new puella magi, fighting witches for your city! Collecting grief seeds, and making new puella magi friends!
Kyubey always told you: "Since you're still new, if a battle with a witch is too hard, you can always run away."
Well.. this witch was especially hard. Your soul gem was... almost black. You never knew what happened after your soul gem became completely black.
You decided to use an attack, a final attack before fleeing out of the labyrinth.
Until a... portal? Somewhat like a portal, but not like one of those cliche ones that are oval shaped, but it was like a rugged line, it opened up, and a man came out?! He looked so pale, and vampire-like too.
He came out of the portal thing, but the witch came charging an attack at him, but he pointed a finger at it and fired a bright green blast light, and the witch died, dropping a grief seed.
He tried to make another one of those portal things again, but it didn't work...
Then he looked at you, all disheveled and messy. A good staring contest for a minute, then he spoke.
"You, girl, where am i."
He spoke to you with a condescending and demanding tone.