C411 Is There Anyone Here?

I was like a thief, sneakily standing at the door of the washroom. In order to let myself know if there was anyone in the washroom at this moment, I even placed my entire body on the door of the washroom with incomparable exaggeration.

For the sake of being able to hear more clearly, I stuck my ear against the door.

I held my breath as I stood at the door of the bathroom