How come in these lyrics 에 isn't after 세상? "이 세상 그 누구보다 널 사랑하겠어." Would it be incorrect if '에 ' were to be added to "이 세상 그 누구보다 널 사랑하겠어"? To make -> 이 세상에 그 누구보다 널 사랑하겠어. Was 에 omitted because the fluidity of the words is better without it, or is it grammatically incorrect to add 에? If it's grammatically incorrect, please explain to me why it is so. ^^