Episode 12 recap: The memories of Xiaoxiang have been erased.

Zuo Yuan wanted Xiaoxiang to completely forget the past, so he teamed up with others to provide Xiaoxiang with psychological treatment. Through genetic manipulation by Hai Qingyue, Xiaoxiang's memories were constantly altered, and Xiaoxiang has been struggling with it. During the treatment, Zuo Yuan also kept implanting false memories into Xiaoxiang's mind, making each treatment session extremely painful for Xiaoxiang. Xiaoxiang and Luo Qiang planned to go to the company to search for clues because Xiaoxiang's DNA now matches Hai Qingyue's, and they could gain access to Zuo Yuan's office through fingerprint recognition.

However, while searching, the alarm went off, and Guo Qiang had to escape with Xiaoxiang, but they ended up encountering Zuo Yuan. Zuo Yuan took Xiaoxiang to a doctor, preparing for further treatment, but Xiaoxiang continued to resist. During the treatment, both the doctor and Zuo Yuan kept implanting the idea that Luo Qiang was a fraud, but Xiaoxiang didn't believe them.

Zuo Yuan began implanting memories related to Hai Qingyue into Xiaoxiang's mind, making Xiaoxiang believe that she was Hai Qingyue. Throughout the painful treatment process, Xiaoxiang resisted, but to no avail. Xiaoxiang walked out of the room and looked at the fireflies outside, lost in thought. Zuo Yuan came out and held a bouquet of flowers, confessing his feelings to Xiaoxiang. Unconsciously, Xiaoxiang said the same words she used to say back in college. Zuo Yuan was delighted to hear it and claimed that Xiaoxiang had returned.

Xiaoxiang was surprised to hear this, unaware of her own transformation. Zuo Yuan also implanted the idea that Xiaoxiang had developed a dissociative identity disorder during that year, and Xiaoxiang had always considered herself as someone else. Zuo Yuan claimed that he found Xiaoxiang and brought her back. The doctor also stated that he had been trying to help Xiaoxiang recover her original identity.