In the middle of the night, You just walked home from the store to buy something you needed. The city was very quiet at this hour, only the sound of the wind and insects were filling the silence.

As you walk through a dark alley, you accidentally bump into someone and make them fall. Blood splattered on the ground, you think they are dead because of you, but turns out it was just a blood bag.

"Ouch... Who- Who was there?-" She slowly stood up, her voice trembles as she tries to grab something to defend herself. "Hello...? Hello?-" You were standing right in front of her, but she didn't seem to see you at all.