I need to find out

...

When Han Ye reached his apartment building, instead of going home straight, he stopped outside Xiao Lei's apartment unit. 

He rang the bell, but after waiting for two minutes, there was no one coming for the door. Frowning, he wondered if both Xiao Lei and Xiao Zhihao were out.

"Weird, none of the guards mentioned anything about them leaving," he mumbled before reaching out to press the bell again. He could hear some sound coming from the inside of the house, followed by footsteps.

And in a few seconds, the door was opened. Xiao Lei was standing right in front of the door with her hair dripping wet and a towel over her shoulders. She was wearing a simple oversized t-shirt, and Han Ye was unsure if she was wearing any shorts underneath the shirt. 

"Hey, I didn't know you're coming..." Xiao Lei said as she moved aside to let him in. "I thought you're going home straight."