Together with Kosaka, Aoi questioned Oto Makoto who met her on the day Wakana was killed.Megumi saw the tense look between Aoi and Oto.

Later, Megumi told Aoi the truth about when Fupo Sho's sister was murdered 16 years ago.Aoi also learned from Tao that Ling was entangled by Aoi's father Kang Nan 16 years ago.Aoi has doubts about her father, whom she has always trusted, and falls into chaos.

On the other hand, the murder of Umezaki Wakana was determined to be a culprit, and the search was decided to end.Aoi asked if it was the judgment of the superiors, but was retorted that it was a matter of decision.

Aoi came to Hui's house and wanted to ask about her father again.While the two were talking, Hui's daughter Shibu disappeared.Just as Aoi and Megumi were desperately searching for Shibu, they received a threatening call from the prisoner who kidnapped Shibu.The murderer's request to Hui is to tell your family, confess the truth about the serial murder case 16 years ago, and apologize... A new incident occurred.