Ijichi Nika is the drummer for the band Musubi Band. To raise funds for the band, she continues to work a secret "job" that she can't tell anyone about. The dark-skinned man is a regular customer who understands Nika's circumstances. They understand each other's desires without speaking, and the two simply exchange passionate bodily fluids. Everything is for the sake of her beloved band - or so she believes.
One day, the man offers more money and hands Nika some provocative lingerie. After a moment of hesitation, she thinks of her beloved instrument and quietly accepts it. Once she puts it on, her shame turns to immoral pleasure, and she unleashes all of her lewd techniques. The line between the dream of the band and the pleasure her body desires is already beginning to blur.