Acheron's true identity is revealed as an "Emanator of the Nihility," adding an element of cosmic mystique to her character. Despite her initial stoicism, she is depicted as a good-natured person striving to set things right. Acheron's personality is described as cold and distant on the surface, embodying the traits of an intergalactic ronin and ascetic imperial maiden. However, beneath this exterior, she harbors a quest for revenge, driven by reasons yet to be disclosed.