The room of number XIII, Roxas. As the Nobody of Sora, Roxas was able to use the Keyblade, which made him extremely useful to Xemnas. Roxas remained with the Organization for 358 days. In that time, he became close friends with Axel and Xion. After he left, Xemnas ordered every Nobody under his control to find and bring Roxas back. And if they couldn't, destroy him.

While fleeing from the Dark City, Roxas was intercepted by Riku, who happened to be under orders from DiZ to apprehend Roxas himself. After exchanging a few blows, Roxas defeated Riku, or so he thought. Using the power of darkness, Riku turned the tables on Roxas and brought him back to DiZ. The two placed Roxas in a virtual Twilight Town until Namine finished rewriting Sora's memory.

Axel and Xion tried to bring Roxas back. Xion summoned a large Nobody called Twilight Thorn to subdue Roxas, but it was no match for him. Axel tried to take him back by force many times, and was finally beaten when Roxas showed his true power.

Roxas' room is very lightly decorated, consisting only of a bed, an end table, and a dresser. Inside the drawer in the end table are many pictures of Roxas with Axel and Xion. Who took them, no one can say for sure.