Gu Juexi looked at Ye Yuwei who had fainted and drew back his hand. The microchip that he had implanted in Ye Yuwei's neck had been removed when Cheng Jie took her, and it was Bai Yuyan who had brought Ye Yuwei to Cheng Jie.
Gu Juexi looked at Ye Yuwei intently and began to recall the old days. He neglected the fact that the person who Bai Yuyan loved and cared about the most was Qian Yikun. He should have noticed that when Bai Yuyan showed how jealous she was when Qian Yikun and Ye Yuwei won the couple rings.
So it was highly possible that Bai Yuyan would do anything that Qian Yikun told her to.
Qian Yikun actually knew about the microchip in Ye Yuwei from the start, and that was why he lost track of Ye Yuwei when he got to grips with Cheng Jie.
Qian Yikun made Bai Yuyan remove the microchip in Ye Yuwei to distract him, in hopes that he would perish together with Cheng Jie while Qian Yikun reaped all the benefits.