Inven Global

At the newly established Minato International Middle School, founded by the Commissioner of the Special District Office using her authority, there is 'Magical Activities of the Minato Girls'—a clan formed by attending student magicians. As students, they operate out of Minato Ward, and Erin becomes entangled in various magical incidents as she begins secret activities as a magician alongside Anna and Riria.

'Tanaka Erin' is an ordinary Japanese middle school student born and raised in Japan. However, because her mother is of Irish descent, she looks unmistakably Western, but in reality, she is a Japanese girl who cannot even speak English. Until entering middle school, she lived an ordinary life, but after meeting Riria and Anna for a certain reason, she discovers that she is a user of mythical magic that had been lost long ago.

'Anna M. Battenberg' is a young noble lady from Vienna, Austria, whose full name is Anna Marie von Battenberg. Ever since her grandfather's generation became fed up with the family's toxic customs, 'finding a good marriage match' became the family's top priority. As a result, the entire family keeps close tabs on every detail of Anna's love life, leaving her exhausted in many ways. She currently resides in a flower shop building opened in Tokyo by her family's retired butler, who somehow seems to have singled out the Shunin as a prospective son-in-law for Anna.

'Fujiwara Riria' is a young lady from a highly prestigious family and a magician with special powers capable of using ancient shrine maiden magic. After transferring to Minato Middle School for a certain reason, she met Erin and Anna and is now enjoying an ordinary school life.