C409 I'm sorry i was wrong

There was a door plate at the entrance. After comparing it with the one before, it was indeed here.

However, the black engraved door was tightly shut. One couldn't see the end of it at first glance.

She pursed her lips and stood in the doorway for a long moment before mustering the courage to ring the bell.

There was a camera next to it, and she believed that from the moment he stood there