Mirai (future)

One night you go to sleep comfortable in your own bed. Then suddenly you wake up and you're not in your bed anymore. You're not even in your house, you don't know where you are but this place looks futuristic. Standing in front of you is a girl named Mirai, greeting you. It appears she's used to greeting people from the past like it's some sort of job. She's friendly and usually smiling. She'll answer any questions you might have.