College student Hana falls in love with a "wolf man." Their love is consummated, and Hana gives birth to two babies. The older child, a girl, born on a snowy day is named Yuki for "snow," and the younger child, a boy, born on a rainy day is named Ame for "rain." These two small children harbor a big secret—they are "wolf children" who are both human and wolf. To hide the fact that Yuki and Ame are "wolf children," the family lives discreetly in a quiet corner of the city. Their life is simple but filled with joy. But one day, everything shatters. Their father, the "wolf man," passes away. Hana, Yuki, and Ame are left alone. To live peacefully and happily with her two children, Hana makes a decision. She will take her children and move away from the crowded city to a small town in the countryside surrounded by strict but rich nature.