Lin Wanzhao, a cleaner at the Clean Heart Department, sneaks into the emotional waste pool every day to deal with the negative emotions recycled from the city. During a certain abnormal operation, she intercepted a complete memory that should not have appeared, thus uncovering the black box that the Tianqiong Group had hidden for many years. Zhou Mingyuan's intervention turned the investigation into a dangerous gamble that faced the core of a giant company.
