The person behind the hidden weapon was Si Yanran. She was the wife of Gong Sun Gan, the leader of the famed Thousand Dawn Spire. The man whom she had just killed was her lover, a disciple at Thousand Dawn Spire.
When she was only twenty, Si Yanran had carved a name for herself with her unique mastery of darts. When she was twenty-three, she had met and later married the leader of Thousand Dawn Spire, who was already by then more than fifty years old. In the blink of an eye, a decade had passed, and what had happened within those ten years… well, it could be summarized with reference to Woody Allen and Soon-Yi.