Yu Xingbai was immersed in the forty-ninth return trip after his wife's disappearance. He habitually booked two tickets to return from Osaka, but every time the empty seat next to him reminded him of his wife's absence like a pinprick, he vowed in his heart not to return.If you quit, you must find your true love.

Jing Haoran was depressed because of Taiya's departure, and Fan Peiqing confided in Yu Xingbai that the three of them were all alone.Yu Xingbai disagrees. He firmly believes that the hope of finding his wife is the driving force for him to move forward. Every time he returns disappointed, this persistence has not diminished.

When Miao Nana fell ill, Yu Xingbai sent her to the doctor in time. He found out that the medicine she was taking made him suspicious, but out of respect and caution, he didn't say much.Miao Nana also begged him to keep it secret to avoid getting into a disadvantageous situation.

Fan Peiqing lamented that since the unexpected death of Officer Qiao, their group of friends seemed to be shrouded in shadow.The joy and laughter of Officer Qiao during his lifetime are in stark contrast to the sudden tragedy, which is hard to let go.Fang Kaixin even blamed herself, thinking that her existence might bring misfortune to her friends.Qian Ming has also become taciturn due to the death of his father, and is about to travel far away with his mother.

Jing Haoran tried to enlighten everyone and reminded everyone that if Officer Qiao had a spirit in heaven, he would not want to see them so depressed.Although Fang Kaixin wanted to leave, his colleagues decided to stay.Soon, a murder occurred. Construction workers found a rotting corpse in the sewer. The death was strange.Yu Xingbai, Fan Peiqing and others quickly rushed to the scene to investigate. The body was in an inexplicable inverted posture.

Although Wang Jing has rich experience, she still cannot stand the stench of sewers.During the investigation, Fang Kaixin discovered that the deceased Chen Wei had a complicated family background, and his mother was actually two years younger than him.Fan Peiqing used high-tech means to conduct detailed anatomy and gradually revealed the truth.Jing Haoran was shocked when he heard that there might be a new discovery about the cause of A Qiao's death. He asked Fan Peiqing privately for confirmation and found out that A Qiao might have died of a heart attack. He felt mixed emotions in his heart.

Although Aqiao's wife was mentally prepared for this, she still couldn't hide her grief and self-blame, and was full of resentment towards her husband's boss and herself.After Fang Kaixin learned that Aqiao's death had nothing to do with her, although she felt relieved, she also felt that her thoughts were selfish.Fan Peiqing encountered Qi Rui asking questions during an interview, which triggered a psychological barrier.His best friend wanted to write a story about solving the case, and Fan Peiqing shared her ideas for solving the case without revealing any emotional details.

While taking a walk, Fan Peiqing ran into the drugstore clerk who was in the shadow of the past, and the two sat awkwardly opposite each other.The clerk's enthusiasm made Fan Peiqing less wary, but she still tried to find out the other party's identity, but to no avail.