C422 I'm Really Sorry

The girl ran for ten minutes, passed five or six blocks, and finally came to an abandoned building.

She found the stairs with familiarity, then walked up, floor after floor, and finally came to the seventh floor, which was the highest floor.

"You're quite early today."

A voice came from behind her. She didn't turn her head. She just turned her hand and took out the Longsword in her hand