Please, Say I'm Dreaming?

Ichigo wakes up in a universe very much not his own, and the journey wasn't exactly pleasant. Even worse, he's stuck there, and his form is... well... unusual? Oh, and, just his luck, there's one other person from his universe there too. Aizen. Crack, crossover, shenanigans. Bits of Aizen/Ichigo. Also Doctor Who, but it would only let me crossover with two things. (I'm so sorry.)