Kagehide was confident that the girl's intelligence would not be detailed enough to know that his Spirit Voice was Yin Thunder. To take a step back, even if the other party knew his Spirit Voice, it would do her no good.
Because the people of the Kansai Branch had already cleared out a quite spacious area for the release of Spirit Voice: Yin Thunder. In that space, there was only the girl alone, with no iron scaffolding and no cover. She simply had no place to hide... and once the chanting of the Dragon Language finished, Yin Thunder was instantaneous. No matter how fast her speed, she would be inescapable!
Throughout the battle between the girl in the white dress and Kotetsu, Kagehide had watched the whole process. According to his analysis, the girl was merely very fast and possessed superior combat skills, which was why she managed to catch Kotetsu off guard. When facing Kotetsu's back-hook knife and elbow strikes, she clearly did not dare to resist head-on, so Kagehide judged that strength and defense were the girl's weaknesses... Didn't this just happen to give him the opportunity for Yin Thunder to shine?
Chapter 543