C777 His Blood Was Boiling!(1)

It's not like I know everything, but at least I know a bit more than anyone else. My brother has kept his identity hidden for so many years. His blood type and identity are unique, so if he ever gets hurt and needs medical attention, the only doctor he trusts would be Kelly.

Or maybe there's another reason. Considering Kelly's age, it's unlikely she's been with my brother for long