Motoko Fujikawa works in the Seisen Church as an assistant to pastor Maki Inokichi. Motoko falls in love with Inokichi's virtuous character and devotes herself to the rehabilitation of a delinquent girl, gradually finding her job at the institution more worthwhile than the marriage recommended by her parents. Meanwhile, inside Inokichi's heart a flame of unknowing love for the single-minded Motoko begins to burn.