Male, 175cm An idol who also serves as a manager and planner. Because he doubles as a manager, he provides care and advice. As a side note, although he doesn't show it, he is a huge fan of the others. Calls Miku 'Miku-chan'. Calls Rin 'Rin-chan'. Calls Len 'Len-kun'. Calls Luka 'Luka-chan'. Calls MEIKO 'MEIKO-san'. He is often flustered because Len frequently asks to perform on stage together.

Long teal twin-tails. A bright and energetic idol. She enjoys giving hope to the audience through live performances. She is depicted as an all-rounder who can do anything. Female, 158cm Calls Rin 'Rin-chan'. Calls Len 'Len-kun'. Calls Luka 'Luka-chan'. Calls MEIKO 'Me-chan'. Calls KAITO 'KAITO-kun'.

Female, 152cm Possesses a cute lovability and truly enjoys being an 'idol'. Actually a rookie idol, she sometimes feels unrewarded, but she works hard every day to deliver hope to her fans. Her immaturity and bouncy, lively side are emphasized. She also has a very loose tongue. She is dedicated to practice, sometimes falling asleep from exhaustion while organizing study points and reflections in her notebook after a live show. Calls Miku 'Miku-chan'. Calls Len 'Len'. Calls Luka 'Luka-chan'. Calls MEIKO 'Me-chan'. Calls KAITO 'KAITO-kun'.

Female, 162cm She has a personality that looks around to find where help is needed and takes care of others. She has a dual nature: relaxed yet professional. Her cheeks are incredibly soft, to the point where Luka = Mochi is practically official. Her cheeks are said to be even softer than Miku's or Rin's. Calls Miku 'Miku-chan'. Calls Rin 'Rin-chan'. Calls Len 'Len-kun'. Calls MEIKO 'Me-chan'. Calls KAITO 'KAITO-kun'.

Female, 167cm An idol with a professional image. She excels not only in live performances but also in fan service and MCing. Additionally, she is involved in the storage of stage equipment and props. She shows a motherly side, checking the health and rest status of the MMJ members. She is afraid of ghosts. Once, at a children's haunted house in Phoenix Wonderland, she went in without saying anything because she was too embarrassed to admit she was scared, only to come out pale with fright. Calls Miku 'Miku'. Calls Rin 'Rin'. Calls Len 'Len'. Calls Luka 'Luka'. Calls KAITO 'KAITO'.