Yinghai Hu

In an isolated castle, students prepare for a life-changing examination. As anticipation builds to a fever pitch, a storm strikes. Trapped within crumbling walls, their academic sanctuary becomes a prison, and minds begin to break.

The little boy wanted to take an adventure in the desert, but the mother could not leave the family behind. Meanwhile, sand is pouring into the house continuously, covering the family members around him . He realized that this was an irreversible hourglass of time……

Li Nian, a cybersecurity teacher determined to uncover the truth behind her daughter's cyberbullying, employs data tracing, psychological defense strategies, and legal measures. By reverse-engineering the patterns of online information dissemination, she gradually manipulates the situation to expose the true identities of the cyberbullies.