I’m a Gatekeeper at Bureau 749

My name is Zhang Shao. I'm the least noteworthy gate guard at Bureau 749, but also the most badass, and the highest-paid gate guard in the country. This guard post is Bureau 749's first line of defense against the outside world. If anyone breaks in, the guard on duty has to be the first to step up. At the same time, it's also the last line of defense against threats from within. If anything inside Bureau 749 escapes, then I, the gate guard, am the final barrier standing in its way.