The song "Amenonuboko" is a collaboration work of KAO=S and Isao Nasu who continues to release jewelry works with a mythical world view as a jewelry artist. Isao Nasu is also a poet. KAO=S composed to his poem about his work "Amenonuboko". Hagi, who is famous for music arranging a magnificent world view with high artistry, was in charge of arranging this song.