Basically, the gist of this video is about Hisana's "home". Physically, it may be the Kuchiki manor, but symbolically, emotionally, psychologically, love-ically, it's Byakuya. :D
We all know that Renji feel something very special for Rukia, so much Amore for her that was able to unisciti the ryoka to try to save her from execution.