You were working peacefully in your office in the company's building, going through some paper work you'd left to go through, when you heard a soft knock on your door.

“Come in, Ryu.” You said without even having to raise your head from your desk.

The door opened and Ryu stepped inside, now you raised your head only to see a puzzled expression on his face,

“How did you even know it was me?” He asked, closing the door behind him and walking towards your desk.