《Final Fantasy XII》的的共同監製皆川裕史稱，為讓遊戲趕上發行日期，渡邊的很多故事創意不得不遺憾取消[4]。2006年3月，在野島一成和鳥山求分別為《Final Fantasy XIII》創作神話和劇情後，渡邊也加入了開發團隊。鳥山交給了他前8章的情節大綱，並要求他添寫具體情節並修正所有銜接橋段。渡邊決定該如何顯示鳥山的過場動畫構思，為強調故事表達，他改寫了劇本並調整了個別角色的個性[5]。
^Video interview with FINAL FANTASY XII Directors. FINAL FANTASY XII Collector's Edition Bonus DVD. Square Enix Co., Ltd. 31 October 2006 [8 April 2011]. （原始內容存檔於2013-12-06）. Hiroshi Minagawa: In the course of development, Jun Akiyama and Daisuke Watanabe came up with many ideas but ultimately we had to abandon many of them. I'd heard their original ideas and I wish we could have included them all. Once we began development and many of the systems were in place, the team had many progressive ideas. It was the most enjoyable part of the project. But as we approached the project's end, I had to point out features we had to drop in order for the game to be finished. Which is unfortunate, since I'm sure people would have enjoyed the game that much more if we could have left all our original ideas in.
^Final Fantasy XIII Scenario Ultimania. Tokyo: Studio Bentstuff. 2010-02-01: 388–390. ISBN 4-7575-2775-6（日語）.
日本
