C321 Take a Step Back

"I'm sure you know a bit about medical skills, and it's not completely without a teacher. But please don't ask about who taught me the specifics. Explaining is a bit troublesome, and you still have to delay the time to save people." Of course, Lin Su didn't want to mention to Liu Tao, who he just met, that he was cultivating in Immortal Hiding Sect, which belonged to his secret in a foreign world