"Hey, that went rather smoothly."
While the downstairs was fraught with danger, upstairs things remained calm and collected.
After changing into a military uniform and assuming a new identity, the male waiter left the room under the pretense that "the suspect had matters to confess to the Capital Commandant", and then successfully arrived on the third floor with the excuse that "the Capital Commandant sent me to get a piece of evidence," and entered room 311.
This military identity was really useful; he planned to go to the backyard in the same way later, which could reduce the risk.
But just as the male waiter, having retrieved the object he had hidden in the water tank, was about to leave the restroom, he suddenly froze in his tracks.
On the inside of the restroom door, shallow blood-red lines of varying lengths crisscrossed each other, their meaning indecipherable.
This perspective was only visible to someone who had entered the restroom and then turned around.