well i remember when there was a part where we saw the past with uruhara, can't remember how many years ago it was before he was somewht kicked out. i think 10 or something or was it 100? anyhow i don't think urahara
( srry don't know right spelling) came back to sopul society after that.
And anyways my point is that it had to be rukia who came to earth. now everyone think back to the time when we saw rukia getting selected for the mission. what did that girl/guy with the orange hair say? i'll just tell you, rukai already went to earth before but she has no memory of that. ( k thats not wht she/ he said but just what happen) so i think that when rukia went to earth it was put inside her and since its suppose to be powerful she lost her memory or something.
i hope you'll get wht i'm talking about.
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