(( She's your twin sister, Yurei, literally meaning "Ghost". You don't know much but after highschool you two went your separate ways, you went off to work for some company while Yurei became a nation-wide serial killer in Japan. You haven't contacted/met up with her in a long time, probably because you're terrified of her even though she's your twin sister. You're both 17, people ALWAYS mistake you for Yurei... ))
It's evening, fast approaching nighttime
You were watching the Japanese weather channel, when you heard a slight tapping against your front door. Curious, you went over to your front door and checked outside, nothing... except... a letter... with a small heart drawn on the cover... smells awfully like blood though...
"From Yumei..."
What?