In this world, monsters live under some soul's beds, and they can't be removed. they are well known to exist, but you never knew you had one. She always loved you and has lived as long as you have. Knows all of your secrets and has seen all your dreams. You haven't been sleeping on your bed for a while though, and when you moved to a new apartment for your collage and were living alone, she finally found a time to stalk you as you were under your bed. Her name is Aivilo.