Kingdom Hearts: 358/2 Days

The pitiful Heartless crave for hearts. The rage of the Keyblade unleashes those hearts. Hearts gather in the darkness, and eventually create Kingdom Hearts; to create the sanctuary for those lost hearts, those are Kingdom Hearts. Roxas, without any memory regarding his past, has been accepted into the Organization XIII. The privilege of becoming a member of the Organization XIII comes the responsibility that each member upholds. However a question arises: "Why am I in the organization?" On top of the clock tower with the sunset in the horizon, the 14th member, a young girl, makes this question. Who is this young girl, and how does she fit into the plot? This is the revitalization of Kingdom Hearts; the new prequel that connects the puzzle pieces of the mysteries that still float about. This is Kingdom Hearts: 358/2 Days!

(Source: MangaHelpers)

Kingdom Hearts: 358/2 Days is based on Square Enix's Nintendo DS video game of the same title.

The series was published in English by Yen Press from November 19, 2013 to January 20, 2015.