Cause of death?

Giving Seraphina's privacy, Liam hanged his head low and wordlessly came out. When he stepped his foot outside, her new bodyguard slash assistant named Rex was guarding the door outside while the other medical staff vanished.

In his peripheral vision, he sees Seraphina's other two guards rushing their way to where he and Rex stands. Since the room was built meticulously, no one from the outside could hear Seraphina's cries.

However, Liam was a little baffled that these men arrived earlier than the other Yue family members. Liam knew that Seraphina won't have enough time to do the next arrangements for her grandfather's body thus, the Jin medical group will automatically provide these preparations -- and probably, will shoulder all the expenses since Sebastian Yue and old man Jin were close buddies.