"Cough, cough, cough!" Tang Yu's comment made the principal erupt into a sudden burst of coughing. The principal could not help but think silently whether Ling Xiao had secretly given his son a private lesson? Thinking about it, it was very likely. The principal decided that he must help cover up for his close friend, and so he said vaguely, "Don't underestimate the Lingtian Mecha Clan. Many of the members come from military families or elite families. They probably knew about these things long ago."
The principal's words made a lot of sense to Tang Yu. He had seen Wu Jiong's and some of the others' data before, and they were indeed from military families or elite families. As such, it was not impossible for Lingtian to have learned of this battle case from them. And so, Tang Yu set aside the doubts in his heart and continued to watch the fight closely.
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