The nickname carries an intentional flavor of inciting panic. In Li Hao's view, it boils down to being a kind of psyker. People are most vulnerable when they are asleep, so it's rather sneaky for them to attack through dreams. Of course, there are thresholds to this, and at a certain level, they pose significant threats. Li Hao once sought such individuals for a while, not expecting to encounter one here. He, however, underestimated Zuo Xiaotang's resistance. When he tried to instill terror of death in Zuo Xiaotang's dream, he encountered strong backlash, attracting Li Hao's attention. Upon discovery, he immediately traced the clues back to the perpetrator, who turned out to be a staff member at the Galactic Center and likely undercover. Li Hao wouldn't let such a person escape. He was more interested in finding out who was pulling the strings behind the scenes.