After the New York case was cracked, KIKO returned to Binggang and received a call from Tina. Tina told her that the theft of the Bangladesh vault was a bank robbery carefully planned by a hacker organization.KIKO sensed that it was the behavior of Ouyang, an old friend whom she had not seen for many years, and it also reminded her of a past event that she did not want to recall.​

On the other side, Wang Jiaoyun's suitor Lin Yingshu was preparing to celebrate his son's promotion, but learned that there was another candidate for the new director.Lin Yingshu was furious and thought this was an unfair decision. It turned out that the father of the new director was Qiao Qingshan, the boss of Wipay. He had to go to Wipay to seek justice from Qiao Qingshan.

KIKO came to Wang Jiaoyun's candy store and found that the business was bleak. She felt that her mother was in financial difficulty. She remembered that TINA said that today was the 30th anniversary celebration of Wipay. She planned to go to the scene to check the situation. Maybe solving the treasury case would solve her mother's financial difficulties.

KIKO came to Wipay. Many business people came to the scene. There was a loud noise in the middle of the venue - Wipay CEO Qiao Qingshan fell to his death.KIKO looked up and saw that it was Lin Yingshu standing on the top of the building.