Out of all the things Liu Wei disliked doing, dealing with people was one of the top five at least, if not the first. Whether it was leading others, cooperating with them, or, god forbid, being ordered around by someone else, he found it extremely displeasing, and honestly, quite a bother.
He was a loner to begin with. Even when he was still only a child, living in a small town with his parents and his younger brother, he was not the most outgoing person. And after witnessing the ugliness of human nature at the young age of seven years old, he naturally developed an aversion to other people…
That's not to say he was incapable of communicating with others. Due to his dislike of humans, he did not care about their opinions, and as such, he never lacked confidence in social interactions. Combined with his natural perceptiveness, he could deal with others skillfully, if he wanted to.