Not even on death's door did Kawayoshi think that the Class D beginner Yamada Akira he knew was the Ninth Heavenly King they had been looking for all this time.
As for him being able to kill Lu Shu at any time, this was probably only possible in his dreams. Not even the entire Collection of Gods could defeat him, except for Takashima Tairatsu and Kitamura Kijitori.
But Kitamura Kijitori was not in this base, while a Class B expert like Takashima Tairatsu could not possibly stay in this base the entire time. So at this very moment, Lu Shu did not have any enemies in this base.
The only variable was when Takashima Tairatsu would arrive, Lu Shu could not confirm this. Furthermore, he had no cellular data and could not establish a connection with the outside information systems. He was thus unable to know Takashima's whereabouts.