BlazBlue

is a fighting game series created in 2008 developed by Arc System Works. An anime adaptation of the first game Calamity Trigger titled "Alter Memory" aired in 2013.

Plot
In the year 2199, humanity eagerly waits for the dawn of the new century, following the end of a series of devastating magic wars. Word spreads that Ragna the Bloodedge, an SS-class rebel with the highest ever bounty on his head and a powerful form of Ars Magus known as the "Azure Grimoire", has appeared in the 13th Hierarchical City of Kagutsuchi. To collect the bounty and his Azure Grimoire, a motley array of fighters converge on Kagutsuchi.

Other Sources

 * http://www.animenewsnetwork.com/news/2013-05-17/blazblue/calamity-trigger-fighting-game-gets-anime-green-lit
 * http://www.animenewsnetwork.com/interest/2013-05-19/blazblue-alter-memory-anime-story-cast-staff-revealed