Disclaimer: I claim little credit for this one-shot. The story of Bleach is by Kubo Tite and he claims it, not I (how I daydream it to be true though.).
Title: Rukia
He was defeated. By the young man's strength. The strength of a young shinigami not yet flourished to its best overpowering him. And he questions his own strength. His pride as the head of the Kuchiki noble family. And as blackness threatened to take over his mind, he gritted his teeth and dragged his feet on the ground as he tried to continue walking on the rocky road.
He had shympoed away from the cliff after his battle with the young shinigami named Kurosaki Ichigo. But that was the limit of his strength. He was weak now. And cursing under his breath, he knelt over to the ground, flipping his palm back up to look at his palm with a dizzy focus.
Kuchiki Byakuya, in the most shocking display of emotions, wept. His cry was not loud, just one trail of tear falling down from his eyes. No one would have believed this was him - the proud and seemingly arrogant 6th Division taichou.
He was on his way to the Central 46 now. Kurosaki Ichigo had saved Kuchiki Rukia whole Abarai Renji had taken her far away from the execution grounds. He would not want to admit it, but he was grateful at the ryoka and his vice-captain in saving his sister. He hoped that he would be in time to stop Rukia's execution orders. And so he moved on, even as he knew he might collapse any moment.
Kuchiki Byakuya had given up on saving Kuchiki Rukia. He had found no reason to save her because she had supposedly broken a severe rule of soul society and if he were to ask for forgiveness on her behalf, he would had hurt the image of the Head family of four big noble families. Also, he had to keep a promise to his parents, even if he were to break his promise to his love. Hisana. And this pained him greatly. His pain for honour.
He cursed more now. His hands tried to push his whole body up but he was shaking. Then he sensed the reiatsu of the Division 3's taichou coming towards him quickly. In the next moment, soft gentle fingers held his arm up and he stood. It was then the voice of 3rd Division fukutaichou Isane came into his head - the truth behind Aizen's 'death' and real plans.
Byakuya's eyes widened in shock and anger at the betrayal of the former 5th Division taichou. "Do you want to go to where he is?" Unohana-taichou asked Byakuya-taichou.
"You knew where he's going?" Byakuya retorted with anger. She nodded. "Since you wish to see him, let me give you a ride to the hill." She motioned for her soul slayer to come to her and she helped him up. Byakuya cared no more for his pride. All he wanted was to save Rukia.
And he blocked the blow from Ichimaru Gin's shikai attack intended for Rukia. In his eyes, it spoke of a limitless amount of worry and apology to her. It also spoke of his desire to protect her, even if it meant his life and pride. And so he fainted in her embrace. He had spent his last strength shympoing to Rukia's side.
The only few times he could keep the promise to his beloved Hisana was now. Would there be more times?
Owari
Author notes: I know it's very OCC of Kuchiki Byakuya but hope it makes sense to you . Review please and I'll response to you :D