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 when needed. When he joined he played the drums.

Discography Featured In
Albums=
 * Albums
 * Minna Shine
 * Tsumanne
 * 8-gatsu 32-nichi e
 * Tanoshiine
 * Eiyuu syndrome
 * Osanasa wo Nyuin Sasete
 * Tsun×Dere
 * Jidou Karte


 * Best Albums
 * Best Kamattechan


 * Mini Albums
 * Tomodachi wo Koroshite Made
 * Natsu.Install


 * Digital Mini Albums
 * Gekijouban Shinsei Kamattechan Rock'n Roll wa Nariyamanai Soundtrack


 * -|Singles=
 * Singles
 * Yuugata no Piano
 * Let's go Budokan!☆
 * Os-Uchuujin
 * Yume no END wa Itsumo Mezamashi!
 * Chie-chan no Seisho
 * Front Memory
 * Zuttomo
 * Yuugure no Tori / Hikari no Kotoba


 * Digital Singles
 * Rock'n Roll wa Nariyamanai
 * Robot no Yoru
 * Hikari no Kotoba
 * Yuugure no Tori (TV Size)
 * Natsuzora Cider (Short Edit) (Tokyo Shusshin 20-sai Josei Vocal Ver.)
 * Delay
 * Mainichi ga News


 * -|Video Releases=
 * Gekijouban Shinsei Kamattechan Rock'n Roll wa Nariyamanai
 * Live History 2009-2013
 * Live@takutaku 2015.10.29
 * "Melancholy x Melancholy" Tour Final @Zepp DiverCity TOKYO Live