Li Lianhua's test was very simple: to use the power of Luo Hou and Jidu to cast his own spells, while successfully drawing back all the released energy.
Any type of energy could be used to cast any spell, so this was not what worried Li Lianhua. His primary goal for the experiment was to retract the unleashed energy completely, leaving no trace behind.
When the time came, no matter who conducted an investigation or what kind of inspection they performed, the only conclusion they could reach would be: it remains entirely unknown who performed this act, or by what method.
Chapter 377