The story begins at episode show 141 of the anime series "Bleach" so there are parts from the show in this story, I'm not rewriting the same story I'm just using some scenes of the show for emphasis. Sosuke Azien has defected from the Soul Society and taken with him Kaname Tosen, and Gin Ichimaru, along with the Hogyoku to Hueco Mondo. There he observes from his palace, Los Noches, Orihime's healing abilities and decides to send Espada number 4, Ulquiorra Cifer, to acquire her. Ulquiorra found her in the Garganta, the pathway between the world of the living and the Soul Society, after viciously attacking the guardsmen escorting her back to the world of the living. He threatens Orihime, telling her that if she doesn't come with him to Los Noches, he would kill those closest to her. He also handed her a bracelet instructing her not to take it off for any reason as it was a way for them to track her movements, it would allow her to pass through any physical object in the world of the living as well as make her invisible, he allowed her to say goodbye to one person, and one person alone, before joining him in Hueco Mondo. Ulquiorra tells her to meet him at the river in Karakara Town by midnight, or he would make good on his threat. As he leaves Orihime in the cavern, she shivers, alone and afraid.
Disclaimer: I do not own Bleach or the Characters
Bleach: An Alternate Version