Lin Zaixin, also called Xinxin, is a woman who has a romantic interest in Lu Xicheng. She frames Shi Wan by screaming that Shi Wan stabbed Qu Muhua, then deliberately falls and hits her head on a coffee table to appear as a victim. She manipulates Lu Xicheng's sympathy, acting weak and fearful while he carries her away, and is later supported by her father in accusing Shi Wan.
