Akame ga KILL! Zero - MangaDex

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.

EDENS ZERO - MangaDex

Chapter 40 (Zero), Akame Ga Kill! Wiki

EDENS ZERO - MangaDex

Akame ga KILL! Zero - MangaDex

Chapter 53 (Zero), Akame Ga Kill! Wiki

Mato Seihei no Slave - Vol. 1 Ch. 5.5 Volume 1 extras - MangaDex

Akame ga KILL! Zero - MangaDex

Chapter 38 (Zero), Akame Ga Kill! Wiki

Akame ga KILL! Zero - MangaDex