Thirteen Yao rolled his eyes.
Shi Tiantian only likes SM, not self-mutilation.
If Liu Zheng was really going to cause her a fatal injury, she would have screamed the safety word a long time ago.
Because during the process of SM, it's hard for the dominant party or third party to clearly tell if the submissive is really in pain or really enjoying it, so a safe word is generally established as a safety measure.
When the submissive feels they can't take it anymore, they would cry out this safe word, and the dominant would stop.
As an old hand at SM, Shi Tiantian naturally had her own safety word as well.
And because Thirteen Yao was always present nearby, the safe word was communicated to him.
Of course, ever since the first time she visited the Bloody Restaurant, there had never been a chance to use that safety word.
Since Shi Tiantian had not shouted it before passing out, then...
"She probably just passed out from pleasure."
Thirteen Yao said with some helplessness.