I barely remember the storyline that I made up from the main idea is that Rukia had got Ichigo caught up in the Shinigami business, which in end almost caused him to die, but the Shinigamis spared him only taking her away. So she'll repent for her sins. On the other hand Ichigo is ashamed that someone had to protect him again. So he's going to save Rukia and protect her this time before she gets executed.