The story follows Ubu, a young woman who finds herself living the dangerous life of a bounty hunter. As she grapples with her inner turmoil, she becomes entangled in a world filled with chaos and the desires of the powerful and eccentric individuals around her.
High schooler Asaya Kanata throws himself into creating music videos. One night, he is stunned by the voice of a woman performing live on the street in the rain. The singer is Yū Orie, who abandoned her musical career and has just started working as a teacher at Kanata's high school.