This nearly two-thousand-kilometer traversal experience taught He Kao what "both a success and a failure" means, serving as a lesson for him that the Invisibility Ability has limitations and must be used cautiously.
If he truly got stuck in Kuan Chun City today, without his ID or phone, what could he do? Seek help from the police and contact his uncle's family for assistance?
If that were the case, how would he explain everything that happened? Was he kidnapped by aliens? If the news got out, his identity as Hidden Moth would likely be exposed.
After returning home, he refrained from being overly joyful and sat down to carefully review his experience. Traversing space using the gate also consumes energy for him; when Divine Qi is depleted, it becomes difficult to activate again.
Given his current level, having just broken through Tier Two, he can roughly traverse back and forth nine times.
