The story takes place in the era of the gods, year 300. Yuuna Yuuki lives an ordinary life as a second year middle school student, but she's also a member of the "Hero Club," where club activities involve dealing with a mysterious being called "Vertex."

(Source: ANN)

Teenage country bumpkin Tatsumi dreams of earning enough money for his impoverished village by working in the Capital - but his short-lived plans go awry when he’s robbed by a buxom beauty upon arrival! Penniless, Tatsumi is taken in by the lovely Lady Aria, but just when his Capital dreams seem in reach yet again, Lady Aria's mansion is besieged by Night Raid - a team of ruthless assassins who targets high-ranking members of the upper class! As Tatsumi is quick to learn, appearances can be deceiving in the Capital, and this team of assassins just might be… the good guys?!

When entrances to a different dimension known as the "Mato" emerge all over Japan, a new resource known as "Peaches" are discovered which give unique abilities only to women. However, dangerous monsters called "Yomotsu Shuuki" also roam throughout the Mato and have been responsible for various disasters ever since. To combat the Yomotsu Shuuki, the government formed the Anti-demon Corps, an elite group of women who have received power from the Peaches.

One day, a high school student named Yuuki Wakura was walking home from school when he suddenly gets lost in a Mato entrance. When he calls for help, he is immediately rescued by Kyouka Uzen, the chief of the Seventh Unit of the Anti-demon Corps. Recognizing his potential while also needing him to make her Peach power more effective, she ask that Yuuki join the Anti-demon Corps by becoming her slave, a position he might find more enjoyable than he initially would have thought..

(Source: MU)

The "dark action" story will take place a few years before the events in the original fantasy series. The prequel will center on the title character Akame, a girl bought, brainwashed, and raised by the Empire as an assassin.