" You cannot fall in love with someone who has                                    
                                         close relationship with this target"                              

                                "Don't let the same thing happen again"                                    
                                              " Are you clear Agent Kai?"                                  

                                              "Copy that, Sir"                                             

you'll never know what will happen if you fall in love with someone you can't love.
                the same thing might happen again for the second time.
                         you just can't.
   you mustn't.