We are all good children, whimsical good children As soon as I hummed this song, I thought of what my mother told me. I asked. Mom, we are all good children. Which song are we from. Mom told me that we are all good children. I used to play a theme song of a game when I was a child, and I used to play games. I asked; what is the game. Mom said, I don't remember. I remember this sentence deeply in my heart.