Anzu is a high school student living under the strict control of her mother, who maintains a "perfectly controlled environment" where defiance is not an option. Anzu has no smartphone or allowance, and her only escape is secretly visiting the listening booths at a CD shop, a love for music she inherited from her late father. One night, she encounters a man playing the guitar, an unforgettable figure described as a "dangerous guy" with a "devilish face" but an "angel's touch" on the instrument.
