The boy's name is Hitori.His arrival was like a god-a white stork sent this angel-like baby to a middle-aged couple who had no children at their knees.The parents are kind, the family is well-off, and the three meals are warm. On the surface, Hitori has all the enviable happiness.However, in order to protect this hard-won family affection, he always hides a crucial secret from his parents.