This was Li Ke's heartbeat.
Thud, thud, thud...
Li Ke's heart was beating, each beat seeming to merge with the world around her; each pulsation of her heart seemed to drive everything in this world to beat in unison.
Even Cao Zhen felt his own heart starting to beat in sync with hers.
Flames were burning fiercely all around Li Ke.
Suddenly, in the next moment, Li Ke's slightly closed eyes snapped open.
Almost at the same time, Cao Zhen jerked his head away, no longer looking at Li Ke.
He suddenly realized that they were pretend dao partners, and it wasn't quite appropriate to stare at Li Ke like that.
Beside him, Linghu Gudu noticed Cao Zhen turning away and was momentarily confused. Isn't she your dao partner? Why did you suddenly turn your head away?
Oh, I get it. She may be your dao partner, but nothing has ever happened between you two, right?
For a moment, his gaze toward Cao Zhen was filled with contempt. To think you're a person of great ability? How embarrassing!