In Victorian London, 12-year-old business magnate Ciel Phantomhive thwarts dangers to the queen as he's watched over by his demon butler, Sebastian.

Humanity has successfully colonized all the planets in the Solar System, with intentions to continue into new frontiers. Individuals live stable lives in these colonies, including young high school students living in 4th Tokyo on Mars. Two of these students are Iris Shirazaki and Mizuki Sera. Iris is finishing her last year of high school while studying to be a test pilot while her friend Mizuki also works as a mechanic on the aircraft. Her own brother, Kaito, oversees Mizuki and Iris as their homeroom teacher and program director.

Ichi is a blind entertainer that travels the countryside with her traditional Japanese guitar and walking stick. She’s in search for the kind man that brought her up as a child, but because of her beauty she encounters problems every step of the way. Fortunately for Ichi, she is also a gifted swordswoman and carries a lethal blade within her walking stick.

Prequel to the TV anime series, revolving around the "origin of the dream."