In alternative version listings (such as the Mandarin version), this episode is also known for the 3E test . When Lu Mingfei fails to show any typical reaction to the test, the academy professors begin to suspect he is the heir to a uniquely powerful and mysterious legacy.
During his solo investigation, Zihang is ambushed and attacked by the Yanling King's Chosen Servant , a powerful adversary that sets the stage for the following battle.
In this episode, Lu Mingfei and Chu Zihang investigate earthquake ruins with the help of Nono’s profiling ability . They successfully identify the culprit behind a major incident at the south station.
After nightfall, Chu Zihang decides to head to the Runde Towers alone to continue the mission without informing Lu Mingfei.