Umi Kousaka

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Umi Kousaka
Kousaka Umi profile.png
iM@S ML character data
Name: 高坂海美 (Kousaka Umi)
Voice actor: 上田麗奈 (Ueda Reina)
Age: 16
Height: 155 cm
Weight: 45 kg
Birthday: August 10th
Blood type: O
Three sizes: 82-57-84
Hobbies: Rock climbing
Skill: Posing naturally (Million Live),
Ballet (Theater Days)
Likes: Dancing (Million Live),
Girl power! (Theater Days)
Handedness: Right
Horoscope: Leo
Hometown: Chiba
Million Live!
Card Type
Theater Days
Card Type
Image Color:     
Umi ML sig.png

Umi Kousaka (高坂海美 Kousaka Umi?) is one of the available idols in the mobile game THE iDOLM@STER: Million Live!. Her basic card is normal. She is voiced by Reina Ueda (上田麗奈 Ueda Reina?).


Million Live! biography

Augh~ I'm itching to get started! Hurry up and produce me, Producer!

Online Character Profile


The hyperactive girl of the MILLION STARS, Umi is a an athletic girl who excels at almost every sport, and most of her cards depict her doing various sports. She has a very energetic personality to the point that she cannot stand being inactive. Umi can’t calm down when she's not doing anything-- in fact, she once said that when she remembers that there are other idols out there who are working their hardest, her body is unable to rest.

Umi is not only good with active sports like football or basketball; she is also good with gymnastics, and she took ballet lessons when she was younger. All of this made her body very flexible. While she is a sporty girl, she's definitely not a tomboy and she's happy to wear cute dresses. While Umi has great confidence in her legs, she lacks confidence in the upper half of her body and she's not good with makeup.

Game Discography

THE iDOLM@STER: Million Live!

Song Discography

Image Songs

Renai Roadrunner
Sports! Sports! Sports!

Recorded Solo Songs

Recorded Group Songs

Trivia and Fan Culture


  • Umi is a terrible cook. She once tried to make a Christmas cake and it ending up being elastic like a Gummi candy, making it inedible.
  • Umi calls her fellow idols by nicknames, such as calling Yuriko "Yuririn" in the beach volleyball event and calling Sayoko "Sayochin" in her caravan story.

Fan Culture

  • She is nicknamed “Umimi” by fans because her name’s kanjis (海美) can be read as such. She even used it herself in some of her card’s text and event dialogues.

Character Gallery

THE iDOLM@STER: Million Live! Cards

THE iDOLM@STER Million Live!: Theater Days Cards