Lu Yuan has a secret: he can see the red loopholes in the text of the rules.
Under the "No Noise" sign in the hospital corridor is hidden "Those who make noise are patients"; on the library borrowing card, there is a line next to "Return Time Limit" that says "Overdue ones will be included in the collection". Others live by the rules, but he looks for bugs in the rules.
My sister Lu Yao disappeared three days ago, and the last place she appeared was a regular domain. In order to find her, Lu Yuan had to walk into those strange spaces constructed by words again and again, using the eye of loopholes to block the gaps in the rules.
But he didn't know that there was a pair of eyes looking at him - and the person looking at him could also see the red words.
