If the explosion was not a coincidence, then the biggest possibility was someone was trying to kill the people there, but this did not match the reality because when the police investigated the crime scene, they did not find any corpses.
Even though Brother Liu did not get involved in the underground world, his nose was sharp enough to smell their presence. He told Ye Shuang directly how curious this whole thing was, and the lack of a body was a further sign of that. This was probably because the intended victim was someone powerful, and they somehow managed to avoid this tragedy.
This theory was soon proven because Ray appeared before Ye Shuang's group looking like he had just survived hell.
"You were captured by Jennifer?" After bringing the man along and hearing his explanation, Ye Shuang gasped. "And she wanted to kill you? The person that was supposed to blow up in the explosion was you?"