[Pupa: Ding! Hidden plot has been triggered! Ling Kai's groundbreaking research!]
Yunyu took a deep breath as Pupa slowly poured the hidden plot in Yunyu's head. The first thing that Yunyu saw was a man, probably in his mid-twenty, writing in his note and checking something under the microscope simultaneously.
He was wearing a lab coat. He was busy in this big laboratory alone, only communicating with his assistant with the intercom. Ling Kai was a young scientist that had a noble heart. His father died when Ling Kai was only ten because of a mysterious illness that rapidly deteriorated his body until he died in his sleep.
Nobody knew what illness had taken his father, but young Ling Kai was determined to discover his father's illness, especially since his mother started to develop the same symptom like his father when Ling Kai was seventeen, but his mother died three years later.
