The Other Angel. [Angel Beats!]

When a girl, Nanako Kyoshi, dies, God allows her to be an Angel, or Guardian. Nanako receives all the Guard Skills, like Kanade has. But when Naoi accidentally hypnotizes Nanako, she loses her memories. Now, Nanako doesn't remember who she really is, the Guardian on the GOOD side. It is now the Battlefront's mission to defeat the Bad Nanako and help her regain her memories. And will love blossom between Noda and Nanako?