Koume Shirasaka

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Koume Shirasaka
Chara 109 00 base.png
iM@S CG Character Data
Name: 白坂小梅 (Shirasaka Koume)
Voice actor: 桜咲千依 (Ousaki Chiyo)
Age: 13
Height: 142 cm
Weight: 34 kg
Birthday: March 28th
Blood type: AB
Three sizes: 65-50-70 cm
Handedness: Left
Hobbies: Watching horror movies, visiting haunted places
Horoscope: Aries
Hometown: Hyogo
Card Type: Cool icon.png
Image Color:     

Koume Shirasaka (白坂小梅 Shirasaka Koume) is one of the characters available in THE iDOLM@STER: Cinderella Girls and THE iDOLM@STER Cinderella Girls: Starlight Stage. She is voiced by Chiyo Ousaki (桜咲千依 Ousaki Chiyo).


Annual Rankings

Event Prelim Rank Final Rank
1st Anniversary Election 22 26
2nd Anniversary Election 11 10
3rd Anniversary Election 21 21
Voice Idol Audition Not a candidate Not a candidate
4th Anniversary Election Unranked 30
5th Anniversary Election Unranked 38
6th Anniversary Election Unranked 47
7th Anniversary Election Unranked 30
8th Anniversary Election Unranked 43
9th Anniversary Election ? 37


"See, when I'm watching horror films, it's when I am really happy...b-but becoming... an idol... seems even more... fun? Pro-producer-san, will you... please teach me? How to... be an idol..."

Character Description and Personality

Koume is a 13-year-old girl interested in gothic culture. She seems to like everything related to the horror genre, often tending to scare the other idols. Koume tends to have a cheerful disposition when it comes to horror, thinking that zombies are very cute and saying she thinks it's adorable when they trap people. She's also very shy, and bad at conversing with others. She starts as a borderline shut-in, only coming to an idol audition because her mom tricked her into going (saying they were showing a horror movie there).

However, recent cards and the anime have portrayed her as developing an odd sort of friendship with the equally socially awkward Syoko Hoshi, often watching horror movies with her.

Game Discography

THE iDOLM@STER: Cinderella Girls

Koume is an idol within the Cool category. Her basic card is Rare. She also had a set of cards released as part of the Maid Collection gacha and eight sets of S Rare cards with the titles "Halloween Nightmare", "White Nightmare", "Summer Yukata Girl", "CD Debut", "Gothic Horror Nightmare", "School Heroine", "Cinderella Dream", and "Step by Step". She has an SSR exclusive to Starlight Stage, titled either "Melodic Night" or "Hair-Raising Night" depending on the reading.


Koume Shirasaka appears as a rival in the STAR OF FESTA mode for Honey Sound, Groovy Tune, and Funky Note. She is a S rank rival who can give her Name Card to the player while in the HARD difficulty. Obtaining her Name Card adds 60 points to the player's score after their performance.

Song Discography


  • Some of Koume's lines in her cards imply she can see spirits or even speak with them, but whether or not this is real or just Koume acting out her love for horror movies is uncertain. One ghost, referred to as "that child" or "あの子", shows up in many of her lines and communications.
  • In the anime, she is shown living in a dorm with Ranko Kanzaki, Anastasia, and Syoko Hoshi.
  • In Starlight Stage, her image stat specialty is Visual.
  • Her autograph is simply her name with the "o" letter changed to a cute-looking version of the iconic mask of Jason Voorhees from the Friday the 13th film franchise.

Character Gallery


THE iDOLM@STER: Cinderella Girls Cards

THE iDOLM@STER Cinderella Girls: Starlight Stage Cards