Ken Yamamura

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Ken Yamamura
Ken SideM Icon.jpg
SideM Character Data
Name: 山村賢 (Yamamura Ken)
Voice actor: 河西健吾 (Kawanishi Kengo)
Age: Unknown
Height: 176 cm
Weight: 61 kg
Shoe Size: 26 cm
Birthday: July 2nd
Blood type: A
Hobbies: Fishing
Skills: Mental Arithmetic
Handedness: Ambidextrous
Horoscope: Cancer
Hometown: Kanagawa
Card Type: EX

Ken Yamamura (Japanese: 山村賢 Yamamura Ken) is the secretary of 315 Production, appearing in THE iDOLM@STER SideM, THE iDOLM@STER SideM LIVE ON ST@GE!, and THE iDOLM@STER SideM GROWING STARS.

He serves as the tutorial guide and information man in these games. Among all secretaries in the entire franchise, Ken is the tallest, at a height of 176cm.

He is voiced by Kengo Kawanishi (Japanese: 河西健吾 Kawanishi Kengo).


Ken is the friendly and clumsy secretary of 315 Production. The other idols sometimes comment on how much work he has to do. He often makes mistakes, but he works hard behind the scenes to support the idols and their producers. He is trusted by the idols because of his earnest nature.

Game Discography


In the original Mobage game, his first N and R cards can be obtained by Point Gachas, Login Stamps, Event Rewards, and Idol Ranking Remunerations.

In the first 315 Production General Election, he made the catchphrases on each idol's election posters. In the Valentine's Day mini-event, players can give him chocolate, and they can also receive a gift on White Day.

His profile was made available during an update on June 7, 2016. It was also revealed that he has a height of 176.0 cm. Therefore, it is possible that the idol-like clerk's outfit he wore on April Fool's Day 2015 could be the one of Teru (He is 175.0 cm tall). As usual, his age is unknown.


Ken is one of the five clerks in POPLINKS, along with Kotori, Chihiro, Misaki, and Hazuki. He can be selected as a navigator in the system settings menu.

Recorded Group Songs

Recorded Group Songs
Song CD Sung With
Aa, Jounetsu ni Hoshi wa Kagayaku 〜315 Production Shaka〜 Vocal & Drama CD: 315 Production Shaka‎ Producer and Takashi Saito

Fan Culture

  • After SideM launched, the game was quickly shut down for maintenance due to server issues, fans quickly blamed the whole mess on Ken. He has since picked up a habit of being clumsy in the office.

SideM Cards