C4819 How Ironic

Tan Suling came to the guard, who had been here before, and knew which building Luo Yunzhuo lived in, but the new guard didn't know.

Tan Suling thought that she would be stopped outside the door, so she didn't want the security guard to see her. After asking if she was called Tan Suling, he let her in.

When she came to the place where she had been a few times ten years ago