Kingdom Hearts 358/2 Days x OC Harmonyx and Xamira

After their birth as Nobodies, the two sisters, Harmonyx and Xamira become members of Organization 13. As the Keyblade's chosen ones, it is their job to help the Organization in defeating the Heartless and collecting the hearts they release, in order to create Kingdom Hearts, so that the Organization may one day become human again. During their time in the Organization, they become great friends with some of the members, Number 8, Axel, Number 13, Roxas, and their newest member, Number 16, Xion. But as time goes by, Harmony and Xamira eventually begin to question many things: the Organization's true actions, their existence, as well as to why the Keyblade chose them?