Chen Yunheng left at 12 am, followed by Zhan Zhiyin.
Zhan Zhiyin followed Chen Yunheng till his apartment, not afraid of being caught by surveillance cameras. She stepped into the elevator after him, but she deliberately kept a distance behind him and only rushed inside after making sure that Chen Yunheng pressed the floor button.
Zhan Zhiyin saw the button of the 19th floor was light, so she randomly pressed the 26th floor.
Chen Yunheng couldn't see anything wrong with Zhan Zhiyin, because he seldom came here. He didn't even know his neighbors next door, let alone other residents in this building.
At the 19th floor, he walked out of the elevator, and Zhan Zhiyin immediately followed him.
Because Chen Yunheng was drunk and felt a little dizzy, he didn't notice Zhan Zhiyin was following him. Afterwards, he opened the door of his apartment.
