Although there weren't a lot of guards remaining after what happened to Tissan, it didn't mean everyone was gone. There were still workers who kept the place clean as common guards that were already there before Tissan moved in. After all, this was still a building destined for Imperial Family Members.
One of the maids just so happened to come to clean Tissan's room later that day when all of a sudden, she noticed the guy sleeping on the bed. Sure enough, that was Tissan, who hasn't awakened yet.
"Ah!"
She was scared to death when she saw Tissan since it was believed that he was dead. Immediately she went out and called the others. Sometime later, Uncle Sam, who had been looking for Tissan all this while, appeared there in a flash.
"Get out of the way!"