Manga Aristophania (2019-)

It is the early 1900s and the three Francœur children are struggling to survive in the slums of Paris. But their lives change forever with the arrival of a mysterious stranger from their father’s past. Countess Aristophania Bolt from the Kingdom of Azur claims she has come to help the trio, but between disturbing phenomena—tricks or sorcery?—and invisible threats, it is hard to know whom to trust…