imagine your self living forever through time and seeing countless people die, many of those people you know and met, could you then be more like jensen all happy hoppy? no of course not, kaim is dealing with all those memories and emotions, its like dealing with depression after your dad or mom dies and sometimes even worse your sister or brother now magnify that by 500 percent and you'll see why kaim doesn't show a happy go personality where you learns lots about him and him having a impressionable personality, how impressionable would you be if you live through one life time seeing all your friends and family die, i think i would loose my mind so LO storyline brings us into a chapter of kaims and his immortals existence and how they deal/live with it and what happens in an immortals life as we learn through kaims dreams that at least he has been through and witness a lot of suffering directly and indirectly from the people he met for as long as he's been living. its this kind of story telling that probably compelled many folks to finish the game.