After assisting Song Yunyan's friend, Lu Ban finally had time to continue production.
However, this time, Lu Ban did not remain silent as he had during the Yannan University Student Film Festival.
Using one's identity and resources for publicity is a part of modern media, an aspect one must taste.
He first created a brief trailer, just a few seconds long—a pie-in-the-sky PV, akin to seeds just sown by players in a host game—and registered all the related intellectual property.
In the trailer, a hand opens a book and writes with a pen, accompanied by a self-narrated voice-over, "When you see this story, I will no longer be in this world," creating a sense of eerie mystery. It ends with the title "The Madman's Mouth."
The images in the trailer did not offer much of an immersive feeling, just common shots. Lu Ban checked it again, uploaded it to the Silence Project's accounts on various video websites, and then forwarded it from his personal account.
