Deviates from original story majorly again, Yamazaki deserved some happiness, and yes that is the reason I changed it even though this is an angsty chapter, he gets a century. A longer on this.
Wilting of the cherry blossoms
When Shippou was a century and a half, physically 3 in human years, tragedy struck. His mate came down with an illness. Terrified he gathered his small family into his arms and ran to the West where the best healers were – no matter how big his territory was, the best of everything was always in the West. He did not stop to drink or eat or sleep for the 30 hours it took him to run there. Seeming as he was not only an ally of the lands, but a personal friend of the prince, no questions were asked as h sped through the Western gates so quickly half of the people did not even see him pass or knew he was there until he eventually stopped.
He all but threw his mate at the head healer with a cry of "fix her!" He was not in his right mind he would admit, his eyes were wild and all he could think to do was shout orders at a worker that was not even his. Shippou got scared and clung to his shoulder, but not even the presence of Shippou helped to calm him even a little. Sesshoumaru and Hiro came running, even Touga came to greet him, but did not stay long, Yamazaki visiting was not a seldom occurrence. He allowed his healers to do everything they could to help Sakura.
They did everything they could too; they did not eat or sleep while they were tending to her, afraid she would worsen if they left her alone. After several days, where Yamazaki never left her side and Sesshoumaru and Hiro took turns making sure he ate and slept, even if he never left the chair beside her, her life was saved. Her position was stabilized and Yamazaki was overcome with the ideals that she would make a full recovery. This was not to be, she was too far gone, she was living off pain killers and drugs, she was such a beautiful and gentle creature, she never showed her pain and would put on a brave face or Shippou, but it did not last.
She was left partly immobilized by the illness and the painkillers she had to take meant that she could not leave the bed for more than a couple of hours at a time. For a demon, such a restricted life was hardly a life at all; she had to stay in the West as well where they could tend to her. A week into such a life she asked him to end her life. He was struck dumb and all he could do was shake his head, he refused to let her die, he was hardly going to kill her himself, he assured her she would get used to this life, he needed her, Shippou needed her.
A month later her views had not changed, Yamazaki did not see that he had much of a choice; he did as she asked as the last loving thing that he could do for her. It was quick and painless, he kissed her on the lips as he pierced her heart so that she died loving him. The last thing he saw of her was her gentle smile and her soft words 'thank you, my love.' He killed her, he killed his mate, his lovely mate, his Sakura, he killed her and she thanked him. That was the first time he remembered he properly cried since he was a kit. He did not just cry, he bellowed and howled long and loud for the whole of Japan to hear him. He screamed and thrashed and lashed out and pulled out his ginger hair and called her name over and over.
It went on for days; he sat there, in the healing quarters silently staring at her forlornly before the full extent of the tragedy bore upon him. Then he sat in the gardens, she'd always loved the outside, holding her and screaming to the sky in pain. There was no placating him, Sesshoumaru tried to console him but he lashed out at him, harming him. Sesshoumaru was never any good at dealing with being hurt but for the first time in his life he was adult about it and did not retaliate, Yamazaki did not need a spar to get this out of his system, he needed to mourn. Once he grieved enough he would be able to return to normal.
Hiro, another close friend, tried everything he could think of too, he tried to be gentle and understanding, and when that didn't work he changed tack and ordered him to stop; it had gone on long enough. He did not manage to help him, he had never had a mate before, and so he did not know what it was like to lose one. He tried to hand him food and drink, he was losing enough water crying after all, but it would seem he could not find pleasure in food anymore; it would seem that without Sakura it was not important. Sesshoumaru ended up taking his kit away because he had been neglecting him in favour or mourning.
This was the only thing that elicited a reaction out of the young fox demon. The reality of not having his kit because he was being irresponsible knocked some sense back into him. He started to eat and drink and sleep, gained weight, rested, he still grieved, kissed his mate goodbye, and the shadows of hurt stayed in his eyes, but Sesshoumaru relinquished his child back to him. He told himself the first love of his life was still out there, he allowed himself to be brought back from the edge of insanity. He would never forget Sakura or stop loving her but he would wait for Kagome, maybe this was a sign from the Kamis they were meant to be together.