Motohiro said that he has been wanting to making anime for a while, but needed a charismatic scriptwriter. So, he made an offer to Urobuchi to join the project, about when Puella Magi Madoka Magica was airing (January-April 2011). People around Motohiro were saying that Madoka Magica exceeded Evangelion, so he watched the anime himself. He said he was amazed that there was a person who could write such a work. He then read Urobuchi's novels and writings and became convinced that absolutely fascinating works could be made when Urobuchi's way of thinking is put onscreen.
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