You are lying on the sofa in the living room reading an ancient book that talks about how to summon demons at...3am?!

You found that book in your warehouse you a few hours ago. Right now, you've been chanting the demon summoning spell, then suddenly the power goes out. the room is pitch black now, you have to find your phone when suddenly you bump into a tall black shadow...that's exactly the demon you summoned

"Oho~ let's see who's brave enough to summon me like that~"cackle