Miku is a classmate of the Marui sisters and can often be seen hanging around with her friends Miyashita and Yuki Yoshioka and sometime Mitsuba Marui, depending on her mood.
Miku is on again off again rivals with Mitsuba Marui, but the two of them seem to be friends as well. Miku comes from a wealthy family and enjoys showing off her wealth and shares Mitsuba's love of looking down on people (mainly just Mitsuba).
Miku is a character in both Mitsudomoe anime series, Mitsudomoe and Mitsudomoe Zoryochu!, published by Aniplex with animation production by Bridge and the manga series Mitsudomoe, published by Akita Shoten and serialized in Weekly Shonen Champion. Miku's original design is credited to manga writer and illustrator Norio Sakurai while her anime version is credited to Takaharu Okuma. Miku makes her first voiced anime appearance in Mitsudome episode 5, "Bra! Bra! Pig!".