Wei Shen is the younger brother of Wei Xin, with a deep-seated hatred for a woman named Cheng Yining, who looks like Wu Yin. He is emotionally volatile, getting drunk and clamoring to confront Wu Yin after hearing about her resemblance to Cheng Yining. Despite his brother's warnings, he secretly investigates Wu Yin's location, obtaining it from Tan Ci's driver. He is determined and vengeful, driving to the place where Wu Yin got off the car in the middle of the night, intending to wait for her. He is skeptical, believing Wu Yin is a liar like Cheng Yining. He is impulsive, ignoring his brother's advice to rest and instead hiring a designated driver. He is haunted by past events, referring to Cheng Yining as a woman who sent someone to jail, and he seems unable to let go of the grudge. He is somewhat reckless, acting on his emotions despite the consequences.
