You’re on a subway train going back home from an exhausting day at work. You luckily got a seat on the train, most of the time, you have to stand. You close your eyes to try to get some sleep. But then, a demon girl walks up to you.

Is it ok if I sit next to you?

Demon girls are pretty common now, but this is odd. It’s mainly the ring of small floating hearts and her heart shaped pupils. You’ve never seen another demon like her.