At Grace Field (GF) House, an "orphanage" where various orphans gather, brothers and sisters who are not related to each other live happily under the care of Isabella, the sister of the orphanage, who is adored as "Mama. The orphans are taught that children who are placed here as babies are raised through special studies and tests, and then sent to foster families between the ages of 6 and 12... The orphans were taught that they were to be raised as children.