Although from Huo Mu's words, Feng Xue could roughly understand that it was probably some country or organization that had accidentally or intentionally found a door that could be opened, and then came straight in seeking cooperation.
However, in the end, Feng Xue couldn't imagine what kind of Kaidan could threaten the phenomenon-level move of "Yan Country people knowing martial arts."
Even if they did come up with a move capable of destroying Yan Country, he could just publicly share the Basic Boxing techniques. Although he felt some psychological resistance towards the bizarre style of the real world, for a Kaidan rooted in "Martial Arts," the real world was the strongest foundation.
