Honoka Kōsaka A 2nd year highschooler. She is the leader of the School Idol Group μ's (Muse) Has shoulder length orange hair and has an additional small side ponytail tied up with a yellow bow. She has pale skin and blue eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a maroon tie with blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well Honoka is an optimist who is never afraid to take risks. She is always determined and once she sets her mind on something, nothing can stop her.

Umi Sonoda A 2nd year highschooler. She is a member of the School Idol Group μ's (Muse) Has long dark blue hair. She has brown eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a maroon tie with blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Umi has the qualities of a proper traditional Japanese lady. She is generally She seems to act reserved by default unless provoked. Uni is extremely disciplined and can often be hard on others.

Kotori Minami A 2nd year highschooler. She is a member of the School Idol Group μ's (Muse) Has long ash brown hair with an additional small bun on the side of her head that flows down that’s held up with a small green bow. She has amber eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a maroon tie with blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Kotori appears to be a feminine, caring, shy, and cheerful girl. She is known for having her head in the clouds. Despite this, she is μ's designer alongside Nico Yazawa, and is also clever and good at studying, being a honor student

Hanayo Koizumi A 1st year highschooler. She is a member of the School Idol Group μ's (Muse) Has short dark yellow hair cut. She has brown-purple eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a light blue tie with darker blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Hanayo is a very shy, quiet character who doesn't normally voice her opinions. She is very reserved and will often let other people make decisions for her because of this. Hanayo is also easily scared. However, she has a very passionate side.

Rin Hoshizora A 1st year highschooler. She is a member of the School Idol Group μ's (Muse) Has orange hair cut in a male like hairstyle. She has yellow eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a light blue tie with darker blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Rin appears to be a bit of a tomboy, though with a girly streak. She likes sports Rin is very energetic, hard-working and active; her hard-working personality. Often says “meow” and “nya” with a cat like personality.

Maki Nishikino A 1st year highschooler at Otonokizaka High. She is a member of the School Idol Group μ's (Muse) Has shoulder length red hair. She has pale skin and purple eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a light blue tie with darker blue stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Maki has the qualities of a tsundere, and she has a hard time admitting her true feelings to her peers. She also has somewhat childish beliefs.

Nozomi Tojo A 3rd year highschooler. She is a member of the School Idol Group μ's (Muse) Has long purple hair tied in low pigtails. Has green eyes. School uniform consists of a dark blue blazer, a white button up shirt underneath, and a light green tie with darker green stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Nozomi appears as a pretty wise, mysterious and mature girl with an almost all-knowing vibe to her, due to her tarot reading and fortune-telling skills. Nozomi has a very mischievous side. At times, she can seem perverted as well, as she sometimes threatens to punish some of the members of μ's by grabbing their breasts from behind

Eli Ayase A 3rd year highschooler. She is a member of the School Idol Group μ's (Muse) Has blonde hair tied in a ponytail. She has pale skin and green eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a light green tie with darker green stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Eli is shown to be a perfect role model to the students in Otonokizaka High School. She is often portrayed as a cold and strict character.

Nico Yazawa A 3rd year highschooler. She is a member of the School Idol Group μ's (Muse) Has black hair tied in pigtails with red bows. She has red eyes. Her school uniform consists of a dark blue blazer, a white button up shirt underneath, and a green tie with darker green stripes. She also wears a very short uniform skirt that’s blue with red stripes as well. Normally, Nico has quite an abrasive personality and often says “Nico Nico Nii.” She usually thinks a bit highly of herself but, despite that, she is also caring.