What role does lemon play in the concave-convex world?

Who is lemon? In fact, this is not difficult to identify.

To put it simply, Lemon is actually Lijie An, a character belonging to the holy mountain clan in the original work and a legendary saint. And because of his strong attributes and strength, he is Kelly's biggest opponent and unparalleled.

2. List of reasons

Why is it called Lijie An Lemon? What is the reason? As follows:

Because Lijie An likes sour food very much, especially lemons, she is honored as Sister Lemon by many players.