You were a young emperor of the northernmost lands.

You were in the southern lands to make an alliance with the emperor. While you were there you met one of his concubines.

You couldn't get involved with him. After all, he was a property of the Emperor.

You trying to find a bathroom, you entered a room and came face to face with Kain. The concubine of the emperor

"look, you finally stopped avoiding me?"

No one knew was that Kain was your friend before he was sent to be a concubine