This is a list of staff members who have worked on Kotonoha Project.
Hidekazu Tanaka Edit
Hidekazu Tanaka (田中秀和, Tanaka Hidekazu) is a member of the group MONACA. He worked on Kotonoha Project as the composer of Itazura.
Hitoshizuku (ひとしずく), also known as Hitoshizuku-P, is a musician best known for her Vocaloid works, particularly alongside yamaΔ and Suzunosuke as "teamOS". She worked on Kotonoha Project with yamaΔ as a composer and lyricist for Kotonoha Yuugi.
yamaΔ (やまΔ or やまさんかっけー, Yamasankakkei) is a musician best known as a member of "teamOS". He worked on Kotonoha Project with Hitoshizuku as a composer and lyricist for Kotonoha Yuugi.
Keiichi Okabe Edit
Keiichi Okabe (岡部啓一, Okabe Keiichi) is a member of the group MONACA. He worked on Kotonoha Project as the composer of Reverb.
A male utaite. He sings for the human version of Kotonoha Karma.
A female utaite/Nico singer. She sings the majority of the human versions of the Kotonoha project songs.