My weird promotion mission

Early in the morning, I went by myself to the magic association. There was a chauffeur of course who acted both as my driver and bodyguard.

"Hello, I am here to take the promotion mission", I said to the reception.

"Sure sir. Please follow me", she said as she led me to the third floor.

Even though this was just a branch of the Magic Association, it was still a five-floor building. The top two floors are used by the personnel of the Magic Association. Only the three floors below are available to outsiders.

She stopped before a room and asked, "Do you know the procedure, sir?"

"Yes I do", I replied.

"Okay, you can take this room sir and I'll be waiting outside", she said as she opened the door.

Though I said that I knew the procedure, she already had details about me. My parents have booked a slot for this morning after I returned yesterday and they knew that I reached level 100. So to her, I am taking a Tier-1 promotion mission.