The difference between Zheng Tai and abnormal condition.

This is too different. This is the right way. Lovely little boy, as for that pervert (every time I say this word, I think of Japan ~ ~ ~ ~ and you can ignore this sentence), it's a little hard to explain. This word has a wide meaning. I suggest you look at abnormal psychology. Suppose a person likes to kill animals or something, even if he is a pervert.