What seemed like an ordinary sight to ordinary people was a silent mime of ghosts and shadows to him. Grandma is critically ill, and her sister Lin Yuan, whom she has not seen for ten years, suddenly returns, accompanied by the ghost in the hospital corridor who says she is "unlike", the empty cabinet in my sister's house that always feels like something is missing, and my grandma's words "So everything you said is true" in the time between yin and yang.
At the same time, another identity of sister Lin Yuan quietly emerged: a high-level executor of the supernatural organization [Special Phenomenon Processing Bureau], codenamed [Listen].
The path of human evolution is intertwined with the tampered past of his siblings. He must see clearly: are those ghosts that follow him everywhere, whether they are the malice of the world, or... Themselves quietly awakening in the frenzy of evolution.
Purpose: When evolution inevitably leads to a battle for the survival of the race, the people we have sworn to protect will eventually become "others" that we must eliminate.