In Kingdom Hearts, Sora turned the Keyblade on himself in order to release Kairi's heart, but his heart was also released in the process. This brought about the creation of Roxas, Sora's Nobody. Unlike most Nobodies, however, Roxas has no memories of his past. He joins Oragnization XIII and slowly begins to discover the truth behind his existence and the Organization itself. He meets and befriends the fourteenth member of the Organization, who also has no recollection of her past. What will Roxas see during his time in the Organization? What is the connection between him, Sora, and the fourteenth member? And what becomes of them? Dive into the heart of Kingdom Hearts storyline's biggest secret.
— Description from Comic Vine community (comicvine.gamespot.com).
