"yoru-no-tayutau" is the first song of the miifuu sound production project. miifuu has produced many idol songs. A project in which miifuu, creates songs based on the concept of "the song I want to make now". The guest vocal of the first song is Ami Sasaki(caeca). She is a member of a Japanese idol group called "caeca" and is very good at singing. This song expresses the life-sized daily life of high school students with comfortable sounds and harmonies. "yoru-no-tayutau" is an image that floats at night. Like the title , I want you to listen slowly while immersing yourself in the sound and singing voice in the deep hours of the night.