Three Fallen Witnesses

Original Story, Screenplay, Director: Satoru Utsunomiya "We confirmed the first evidence. Next...". She was falling asleep before she knew it. But conversation of unknown two people kept staying in her head. "Second?". A man and woman who call themselves polices appear before Asami. But she is still suspicious of them. What is "the fire incident without burning" they are talking? What is "the time for reproduction"? And what is "the unavoidable third secret?"