The mirror Zheng Qing referred to was naturally not the kind used daily for grooming and reflection.
It was neither the kind of enchanted mirror that Dylan's classmate had, which could provide dressing advice in a shrieking voice. The mirror Zheng Qing mentioned was the World in the Mirror.
When Furry Bean reported to him the status of the hunt, mentioning that the two demons had disappeared deep into the World in the Mirror, the young scholarship student felt a strong sensation—it was time.
Time to bring Zhu Si back from the World in the Mirror to the real world.
Time to capture the Faceless Demon and help Jiang Yu let go of her emotional hang-ups.
When two unrelated threads converge, that point of intersection becomes the key to solving the problem. The prophecy Mr. Wu mentioned in a previous lesson, about 'the threads of destiny intertwining,' likely referred to this.
"Do you plan on entering the World in the Mirror?"