Once upon a time, a little girl hid herself silently, not wanting to find anyone's eyes.
Once upon a time, there was a beautiful little boy who hated a little girl because she made him lose face.
Once upon a time, there was a naughty little boy who missed a little girl because she made him very timid.
Once upon a time, a little girl was bullied by her classmates until she cried. Every time she slapped them in front of everyone...
Once upon a time, I was childish.