Rounded to 100%

"… Nothing."

Li Yao narrowed his eyes and said, one word after another, with a hideous face, "I am just somewhat puzzled. In the present days when the technologies are so advanced and the modern defense measures are too many to be counted, the super prison that ranks top in the entire Imperium is still defending the ventilation tube through such a primitive approach? Why don't they install some state-of-the-art, dazzling defensive devices, such as automatic defense arrays, which are so immaculate and impenetrable that no person will be required to watch over the ventilation tubes?"

"Exactly. Everybody knows that the defense system of the ventilation tubes of the Godly Might Prison is stupid, but it is a result of the Imperium's accumulated problems."