How many years does it take for a boy of 17 or 18 to grow into a qualified hunter? If there is still light in this country, Xi Yue wishes he had not run towards it. (I am incompetent at writing, so I can't continue editing...) P. S. The middle and later stages will be mainly about plot, with occasional romance; ++++ characters may be caught off guard; ++++ the future world is completely imaginary, not hard science fiction.