"BEASTARS" is set in a world inhabited by anthropomorphic animals, where societal tensions between carnivores and herbivores form the backdrop of the narrative. The story unfolds at Cherryton Academy, a prestigious high school where students navigate complex social hierarchies and personal struggles. The protagonist, Legoshi, is a gray wolf and a member of the school's drama club. Despite his imposing carnivorous nature, Legoshi is introverted and struggles with his instincts, particularly after a traumatic incident involving the murder of Tem, an alpaca student, by an unknown carnivore. This event heightens existing fears and prejudices within the school, casting suspicion on carnivores like Legoshi.

Legoshi's life becomes further complicated when he develops feelings for Haru, a small white dwarf rabbit. Haru, often marginalized due to her species and perceived promiscuity, represents a stark contrast to Legoshi's reserved demeanor. Their relationship challenges societal norms and forces Legoshi to confront his identity as a carnivore and his feelings of guilt and responsibility. Meanwhile, Louis, a red deer and the charismatic leader of the drama club, serves as a foil to Legoshi. Louis, a herbivore, harbors his own insecurities and ambitions, striving to overcome the limitations imposed by his species. His complex relationship with Legoshi oscillates between rivalry and mutual respect, adding depth to the narrative.

As the story progresses, Legoshi grapples with his predatory instincts and the moral implications of his actions. His journey involves encounters with various characters, including Gohin, a panda therapist who helps carnivores manage their urges, and Juno, a female wolf who admires Legoshi and seeks to elevate the status of carnivores within society. The series explores themes of identity, prejudice, and coexistence, delving into the psychological and emotional struggles of its characters. The narrative balances personal growth with broader societal issues, creating a layered and thought-provoking story. Through its intricate character dynamics and exploration of interspecies relationships, "BEASTARS" presents a compelling examination of the challenges and complexities of living in a divided world.