I noted that the submission must abide by cc-nc-nd, but what I meant was that you must give us copyright of the photo for express use in the final product (the game) which is under the cc-nc-nd license.
このゲームはcc-nc-ndでリリースするけど、君達の写真は私達自身のライセンスに住めなきゃだめです。(私達自身のライセンスは詰り君達の写真の版権(©)は私達に預けて「遣せコンヤロw」。それだけです。)