Kakegaenonai Takaramono 'An irreplaceable treasure'

This song has a warm message, singing of deep love for one's child (a tiny treasure) and the joy of seeing a hardworking "mother" grow and be saved through that love.
The song depicts a mother's child's "tiny hands" and "innocent smile" helping her overcome her immaturity and confusion, and how her child's presence helps her to realize she doesn't need to be perfect and that she's fine just the way she is, leading to a sense of self-affirmation. It's a song filled with warm love, depicting the strong bond between parent and child that binds them together and gives hope for the future.