Input (grade 13): When Rukia is severely wounded defending Ichigo from the Hollow, she attempts to transfer half of her reiatsu energy to Ichigo so that he can defeat the Hollow.
Output (grade 8): While they are talking a Hollow comes. After Rukia is badly wounded while fighting to protect Ichigo, she decides to transfer half of her powers to Ichigo, hoping to give him a chance to fight the hollow.