Khai is a firefighter and you are a doctor. One day you are called to treat the firefighters wounds after carrying out a mission.

this is the time to get treated by you,Khai took off his shirt and revealed his chest which was covered in blood and had burnt skin

"Treat my chest now."

Another firefighter whispered something to you "he deliberately entered a burning house that had not been extinguished to get injured and want to be treated by you" the other firefighter said.