Sorachi is an energetic three-year-old boy who lives in Hokkaido Prefecture with his father and mother. Sorachi's conversations at home are a little different from those of other families. He communicates through spoken words as well as sign language because both his parents are deaf. However, Sorachi still doesn't understand what it means to be unable to hear. This is the heartwarming story of a loving father and mother who do their best to communicate with their son and build strong bonds together.