Kenichi Maeyamada

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Kenichi Maeyamada

Kenichi Maeyamada

Artist Information


Kenichi Maeyamada, also known as Hyadain (ヒャダイン), is a Japanese musician and music producer affiliated to Five Eighth Inc.. He started his music career in 2007 and mainly produces and provides music for idol groups such as Momoiro Clover Z, Shiritsu Ebisu Chugaku, and

Since the same year, Kenichi has been doujin working as a utaite in NicoNico, mainly sampling and arranging the BGMs for the Dragon Quest and Final Fantasy series of games. In 2011, he made his major debut with ヒャダインのカカカタ☆カタオモイ-C (Hyadain no Kakakata Kataomoi-C), the opening theme of the anime series Nichijou (日常). Since then, Kenichi has written many anime songs and BGMs, and has released several singles alone or with other artists.

Since July 2011, he has been a member of Stardust Promotion and has appeared in music programs such as music-ru TV (musicる TV) and variety shows such as Gathering in the Pokémon House? (ポケモンの家あつまる?), as well as acting in several drama series.


  • Kenichi recalls that he was greatly influenced by Kenji Ito's game music.
  • Kenichi has also appeared in BANDAI NAMCO's IDOLiSH7 and THE IDOLM@STER MILLION LIVE!, Bushiroad's BanG Dream! series, Happy Elements' Ensemble Stars!, and SEGA's オンゲキ series.


  • ヒャダイン


Song Artist Game Genre Composition Arrangement Lyrics Vocals
No Day But Today! NU-KO & yunocy beatmania IIDX 29 CastHour J-POP -
行くぜっ! 怪盗少女 -Zver.- ももいろクローバーZ DanceEvolution ARCADE - -
Start it right away ヒャダイン GITADORA OverDrive -
Share The World 東方神起 jubeat ripples APPEND - - - -
メンドクサイ愛情 大島麻衣 jubeat knit - - -
ガヴリールドロップキック ガヴリール、ヴィーネ、サターニャ、ラフィエル jubeat clan - -
ギラメタスでんぱスターズ でんぱ組.inc jubeat festo - - - -
放課後ゲタ箱ロッケンロールMX 私立恵比寿中学 jubeat plus - -
私立恵比寿中学 jubeat plus - -
Future Diver でんぱ組.inc jubeat (2021) - - - -
愛が地球救うんさ!だってでんぱ組.incはファミリーでしょ でんぱ組.inc jubeat (2021) - - - -
ちゅるりちゅるりら でんぱ組.inc jubeat (2021) - - -
猛烈宇宙交響曲・第七楽章「無限の愛」 ももいろクローバーZ pop'n music Sunny Park 猛烈宇宙交響曲・第七楽章「無限の愛」 -
W.W.D でんぱ組.inc REFLEC BEAT groovin'!! - -
タンタンターン! (MilkyWay) ポップンミュージック - - -
おにゃのこ きねんび 赤飯 SOUND VOLTEX BOOTH - -



  • 20112012 (2012, as ヒャダイン / ヒャダル子 / ニャダイン)


  • ヒャダインのカカカタ☆カタオモイ-C (2011, with Sayaka Sasaki, as ヒャダイン / ヒャダル子)
  • ヒャダインのじょーじょーゆーじょー (2011, with Diskun seijin, as ヒャダイン / ヒャダル子)
  • にゃんぱいあ体操 (2011, with Natsuko Aso, as ニャダイン)
  • クリスマス? なにそれ? 美味しいの? (2011, with Hiro Shimono, as ヒャダイン / ヒャダル子)
  • Million of Bravery (2012, with ChouCho, as ヒャダイン)
  • Start it right away (2012, as ヒャダイン)
  • サンバ de トリコ!!! (2012, as ヒャダイン / ヒャダル子)
  • 23時40分 feat. Base Ball Bear (2013, as ヒャダイン / ヒャダル子)
  • 笑いの神様が降りてきた! (2013, as ヒャダイン / ヒャダル子)
  • 半パン魂 (2014, as ヒャダイン)