I have the English language version of the game, and I agree that especially in the early acts Wyll is immature and a bit rude, but he also seems to have a good heart and wants to do good things. It is unfortunate that the Korean translation resulted in more severe words, because that can certainly change the flavor of the character. I kind of wish he would just lose his warlock powers, and then I would turn him into a ranger, which seems a better fit in the end.
Wyll is one of so many characters in BG III who sells his or her soul in order to achieve some temporary objective. That seems to be the running theme in the whole game ... will you sell your soul to Mizora, or Raphael, or the Emperor, or the Absolute, or Shar, or Bhaal, or Myrkul, or Bane, or Auntie Ethel, or the Weave, etc. It's a lot different from the "coin on edge" theme of BG I & II, which I prefer.
