The story follows Ryuichi Kashima and his infant brother, Kotaro, who are orphaned when their parents die in a plane crash.
The series the voice talents of Kōtarō Nishiyama as Ryuichi Kashima, Nozomi Furuki as Kotaro Kashima, Yūko Sanpei as Taka Kamitani, and Yūichirō Umehara as Hayato Kamitani.
The two brothers are taken in by Yoko Morinomiya, the director of a children’s academy who lost her adult son and her daughter-in-law in the same plane crash.