The artist that drew the front cover as well as Kurenai's sketches is d.k., pen-name for Dong-Kyu Kim, a Korean living in Japan. He also happens to draw the concept sketches for Nier as well.
Stillborn Franchise: The obvious Sequel Hook nature of the game intends this to be a franchise of its own. Were it not for the Obvious Beta status, it would have been a serious contender against the then-reigning champion of stealth assassin genre, Tenchu. Alas, not only the game bombed, Tranji Studios went under after making the game and Vivendi Universal Games shifted their priorities.