damn, so we finally meet the sister, only to have the bombshell dropped that if hiyori continues like this she'll die?? and that from the brief bit of dialogue we get from yukine's sister, it looks like even though she and her mother likely left for their own safety she always hoped that he'd be okay and she genuinely starts crying when she mistakes hiyori to be her brother's daughters??? owwww. not to mention that fact that yukine is slowly losing it, being pulled along by father further and further down into the abyss. also confirmation that what yukine felt when he was attacking yato was the image of everything he hated in his father, not yato himself.