"What kind of elixir is this?" Yuan Qianshen stared at Ling Feng with a face full of doubt.
"This is an elixir for healing a senior."
Ling Feng smiled faintly, "Although I haven't taken your pulse directly, senior, I can see from the expression on your face that it's very stiff, so no matter what, you always seem to be cold as ice. According to my diagnosis, this isn't due to your nature, but because when you were young, you mistakenly consumed something with Cold Evil Energy. Although it changed your physique and accelerated your cultivation development—"
Ling Feng paused, then continued, "It also left some Cold Evil Energy residual in your body, which has caused you to suffer from its backlash, has it not?"
"This..." Yuan Qianshen looked at Ling Feng unbelievably, his eyelids twitching wildly, "How do you know?"