Li Zong, Ni Zhao Cuo Fu Ren Le

Jiang Sheng, an intern of the Li's group, accidentally slept with her boss, Li Ting Yi. When she woke up, she planned to leave without notice, but accidentally dropped the resume of her friend, Lin Xiao in the room. As a result, her friend, Lin Xiao Xiao took her identity and moved in and became the girlfriend of her boss.
(Source: Chinese = Douban || Translation = MDL)