Kaido Yukiya

 (海藤佑希也) or better known as mono is a Japanese keyboardist, guitarist, percussionist, and drummer.

He's the leader and keyboardist of the band Shinsei Kamattechan, however he also plays the guitar and percussion instruments if needed. When he joined he played the drums.

Discography Featured In
Albums=
 * Albums
 * Minna Shine (みんな死ね; Everyone Die)
 * Tsumanne (つまんね; Boring)
 * 8-gatsu 32-nichi e (8月32日へ; To August 32nd)
 * Tanoshiine (楽しいね; It's Fun)
 * Eiyuu syndrome (英雄syndrome; Hero syndrome)
 * Osanasa wo Nyuin Sasete (幼さを入院させて; Hospitalize My Childishness)
 * Tsun×Dere (ツン×デレ; Tsundere)
 * Jidou Karte (児童カルテ; Child's Medical Record)


 * Best Albums
 * Best Kamattechan (ベストかまってちゃん)


 * Mini Albums
 * Tomodachi wo Koroshite Made (友だちを殺してまで; To Kill a Friend)
 * Natsu.Install (夏.インストール; Summer.Install)


 * -|Singles=
 * Singles
 * Yuugata no Piano (夕方のピアノ; Evening Piano)
 * Let's go Budokan!☆ (レッツゴー武道館っ!☆)
 * Os-Uchuujin (Os-宇宙人; Os-Alien) (w/ Ogame Asuka)
 * Yume no END wa Itsumo Mezamashi! (夢のENDはいつも目覚まし!; An Alarm Clock Always Ends My Dream!) (w/ B.B.QUEENS)
 * Chie-chan no Seisho (知恵ちゃんの聖書; Chie-chan’s Scriptures)
 * Front Memory (フロントメモリー)
 * [Zuttomo]] (ズッ友; Forever Friend)
 * Yuugure no Tori / Hikari no Kotoba (夕暮れの鳥 / 光の言葉; Evening Bird / Words of Light)


 * Digital Singles
 * Robot no Yoru (ロボットノ夜; Robot Night)
 * Natsuzora Cider (Short Edit) (Tokyo Shusshin 20-sai Josei Vocal Ver.) (夏空サイダー (Short Edit) (東京都出身 20才 女性 Vocal Ver.); Summer Sky Cider (Short Edit) (20-year-old female from Tokyo Vocal Ver.))
 * Delay (ディレイ)
 * Mainichi ga News (毎日がニュース; Every Day is News)


 * -|Video Releases=
 * Live History 2009-2013 (ライブ・ヒストリー2009-2013)
 * Live@takutaku 2015.10.29 (ライブ@磔磔 2015.10.29)