Huo Sining was quite suspicious, believing that this was Lu Huairu's doing, but she killed Fujiwara Seiho without revealing herself. Even though Lu Huairu was in the dark, she wasn't worried that Lu Huairu would suspect her.
The only traceable clue was probably just this little creature, Qibao. But at the time, she and Qibao left the secret chamber in invisibility, and no matter how powerful Lu Huairu was, he couldn't guess that they had returned to the archaeological team's base.
Moreover, with Fujiwara Seiho, the leader, dead, Lu Huairu, just an obscure antique shop owner, couldn't stir much trouble.
So Huo Sining wasn't worried at all and stayed an uninvolved spectator throughout, without getting flustered or confused.
She acted naturally, so Zhao Chengke of course wouldn't suspect her. However, news came from the hospital that criminal investigation personnel went to question Director He and the other injured parties, seeming to have sensed something amiss.
