Throughout the night, the voice of a boy echoes, who had crashed into a girl while riding his bicycle and then fled. He unleashes a stream of profanity aimed at his revered sister, a person he is always compared to by others.
Upon listening to an ardent appeal directed towards the moon, Na transforms into a butterfly and descends from the heavens to fulfill the request. However, this comes with a great sacrifice as the butterfly's life is forfeited.