There is a fairy tale about stars falling from the sky, and at night, monsters will run out of mirrors or reflective places in rivers. They will go to the mountains and fields to pick up the fallen stars, put them on the bedside of the person related to the stars, and then go back into the mirror and look at the new owner of the stars through the mirror. For monsters, it is their mission to give stars to humans, because stars are left to them by the deceased. The monsters themselves don't know their own births. They only clearly remember where the stars fell and the humans they were entrusted to...
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.