In some workplaces, there are common power dynamics at play: the boss who embodies chauvinism and shirks any real work; the employees who aim to curry favor with the boss; those whose lives seem idyllic; and the workers who bear the brunt of the actual workload. Retsuko, a red panda, falls into this latter category, often staying late to pick up the slack left by her lazy colleagues. To decompress from the pressures of her daily existence, Retsuko frequents a local karaoke bar, where she unleashes her frustrations through death metal singing. It serves as her personal sanctuary, a reprieve from the outside world. However, as Retsuko ventures outside her comfort zone and confronts other's impressions of her, she realizes that opening up to others about her love for death metal could be beneficial