Baby Reimu saw dreams of her mother's life. She's a silver badge pet who has a loving owner. She met a Marisa and they love each others. Little Reimu is also expecting this beautiful world. She will have sweets sweets, an easy place, parents and owner who will let her take it easy. She will grow up, find a darling and live with lots of little ones.
But that's a dream. Her mother refreshed with wild yukkuri and got sent to factory. This little Reimu is born in factory and fated to end her life between the machines.