Episode 21 recap: Dongchen Diamonds have once again encountered quality issues.

Arianna mocked Bai Xin Ning and claimed that she would definitely come back, but Bai Xin Ning didn't take her words to heart. She had secured her position and was content with it. On the other hand, Ye Xiao Qing was forced to return to her original position. Ye Xiao Qing didn't believe she was wrong; she understood that it was simply the law of the workplace.

As the Design Department Director, Bai Xin Ning held her first meeting and informed everyone about the outstanding performance of Haitanghua. Li Ming Kang became the Chief Designer of the department. Bai Xin Ning hoped that everyone would strive forward and become excellent designers themselves. Her words resonated well with the team.

In the evening, Bai Xin Ning bought food to prepare for overtime work. She happened to run into Lin Yi. Bai Xin Ning knew that Lin Yi had always been there to help her whenever she was in danger. Bai Xin Ning asked Lin Yi if it was true that she had convinced Tang Wanrong to transfer her shares. Lin Yi didn't answer directly but hinted that one day Bai Xin Ning would find out.

Meng Xiao Xiao went to the store early in the morning to check the situation and encountered a customer who wanted to return a diamond ring. The customer claimed that they were sold artificial diamonds instead of real ones. Meng Xiao Xiao quickly retrieved the ring and had Bai Xin Ning inspect it. They discovered that the diamonds were indeed artificial, indicating that there were many artificial diamonds in the store. Lin Yi learned about this incident as well and realized it was a problem with the procurement department. Lin Yi ordered the Procurement Director to immediately halt the sealing process. The director was pressured by Lin Yi and had to suspend his current work, leaving him confused.

Lin Yi secretly messaged her brother, asking him to come to her house in the evening. She planned to thoroughly investigate the accounts of the procurement department. The director's son had been in the hospital and unfortunately passed away due to a failed surgery. Devastated, he had to gather his child's belongings at the hospital. In the evening, Lin Zhe discovered a name, Tao Le Qi, in the accounts. Tao Le Qi was known for mining and had previously wanted to collaborate with Tang Wanrong.

Lin Yi instructed her brother to thoroughly investigate this transaction as she sensed that something was amiss. Li Zhuo Ran learned about the director's son's death and insincerely came to offer condolences. In reality, he wanted to inquire about the fake diamonds. Tao Le Qi was introduced to Lin Yi by Li Zhuo Ran, and now Li Zhuo Ran was shifting all the blame onto him. The procurement director was left speechless.

With his son gone, the director felt helpless. Li Zhuo Ran even offered to provide money to cover up the issue, but it was clear that he didn't want Lin Yi to find out. However, this time, the director was unwilling to let Li Zhuo Ran manipulate him any further.

After Li Zhuo Ran left, Lin Yi came over and brought some money. The procurement director was most concerned about finding a similar child for his deceased child. This time, Lin Yi didn't say anything and just left. Ye Xiao Qing showed her designs to Bai Xin Ning, and surprisingly, Bai Xin Ning approved of them. Ye Xiao Qing was thrilled, and Bai Xin Ning didn't blame her for switching sides. Instead, she felt that Ye Xiao Qing had shown her warmth for the first time.

Li Zhuo Ran asked Bai Xin Ning to come to his office. After Bai Xin Ning went there, Li Zhuo Ran asked her to design the diamonds from the procurement department. Li Zhuo Ran wanted these diamonds to be made into jewelry and brought to the market as soon as possible. Bai Xin Ning was somewhat surprised by this and shared the information with Li Ming Kang, who also felt that something was off about the situation.

Later, Bai Xin Ning told Lin Yi about the plan. Lin Yi immediately sensed that there was something fishy about it and even said that she wouldn't approve the plan. Bai Xin Ning found this strange as well. She complained to Lin Zhe about it, and Lin Zhe speculated that perhaps these diamonds were artificial, which might be the reason why Lin Yi didn't want to approve the plan.

Suddenly, Bai Xin Ning had a realization. After learning that the procurement director had taken leave due to his son's death, she went to talk to him about the matter. However, the procurement director was unwilling to speak about it and only mentioned a person named Tao Le Qi. Bai Xin Ning found it curious that she had heard this person's name from both Song Cheng and the procurement director. She asked Lin Zhe to thoroughly investigate this matter.

When they arrived at work, the procurement director voluntarily resigned and stated that he wanted to sell all his shares. He no longer wanted to stay in the company, especially after his son's passing. This surprised Li Zhuo Ran, who thought that the director simply wanted to withdraw from the situation. After investigating Tao Le Qi, Bai Xin Ning went to see Cong Fei. Cong Fei only knew that Tang Wanrong had known Tao Le Qi in the past, and Tao Le Qi was originally a witness but had gone missing.

Bai Xin Ning also asked Lin Yi about her opinion of Tang Wanrong. Cong Fei mentioned that Lin Yi greatly admired Tang Wanrong and that it was highly unlikely for her to frame Tang Wanrong in this matter.