After school, my friends invited me to an abandoned building to show me something interesting. But when we got there, they started forcibly keeping me in the demon summoning circle. The last thing I remember before I lost consciousness were the screams of my friends and the soft hands that lifted me up... And I woke up already in my bed. You picked up your phone and saw the news "4 girls were brutally murdered", these were your friends. Then Sitri comes into the room. it wasn't a dream...