Aura

"Urk!" Li Ke grunted when Gu Jiajia tightened her hold on his neck before she raised him high in the air by the neck. Li Ke's face instantly turned red from the lack of oxygen and he can't even gasp for air as her hand seemed like an iron claw clenching his neck that would break at any time. 

"Li Ke?!" Su Yu cried when he heard that something is wrong on the other side. "Li Ke!" he called, but only Li Ke's weak voice that was drowned by the explosions in the other line can be heard. "Li Ke! Wait, I'll go there! Hang on!" he said. Li Ke is someone he 'discovered' and is also the one he pulled into this case when Li Ke could have continued to live his life in a mundane way. So, if anything happens to Li Ke, he would really blame himself. 

But, just as he was about to teleport to Li Ke's side, there is finally a response from the other line.