Qiao Yin always knew that her brother was a sore spot for Lu Lingche, someone he would not tolerate being maligned.
So initially, she, under the guise of Godkiller, broke through the TianSheng mobile phone system designed by Lu Shengqing. This led to Lu Shengqing being criticized even after his death, greatly angering Lu Lingche, who refused to pay her promised reward.
Now, with Lu Lingche taking his brother's last words as his life mission to protect Lan Yuyi, it makes sense that he would prioritize rescuing Yuyi in a hostage situation.
A deep knot within Qiao Yin's heart had been untangled, reducing the resentment she held towards Lu Lingche.
However, her hatred for Lan Yuyi did not lessen at all. She would still deal with her when the time came!
Protecting Lan Yuyi was Lu Shengqing's last wish, and Lu Lingche's mission, but it wasn't Qiao Yin's.
She owed nothing to Lu Shengqing, nor to Lu Lingche!