A demon whose origin remains unknown. While she is a Belianus, it is unknown if she was the reborn soul of an animal, or something else entirely. It is implied that she came from nothing, and was merely conceptualized. This is, however, only a guess as to where Akagi came from. Nonetheless, she is a being of near-infinite power, and who views the multiverse as a plaything.

Sadistic and bloodthirsty, Akagi plays around with people's lives and feelings as if they were mere video game characters. She does not see nor appreciate the beauty in life, and instead finds charm in its opposites: suffering, gore, and death. She is an unseen antagonist in equilibrium, having been the one to set Aster on their journey of self-proclaimed righteousness.

Despite her penchant for chaos, Akagi does not meddle much in the lives of others, opting instead to watch back, like a merciful god; at least, that is what she has convinced herself to be: a god, a god, a god.