"Kemonomichi" centers around Masahiro Taniya, a professional wrestler who finds himself transported to a fantastical world filled with anthropomorphic animals and mythical creatures. Upon arrival, Masahiro discovers that the world is plagued by systemic oppression and cruelty toward beastfolk, who are treated as second-class citizens. Unlike typical isekai protagonists, Masahiro does not gain extraordinary powers or a heroic destiny. Instead, he relies on his wrestling skills, physical strength, and unwavering sense of justice to challenge the injustices he encounters.

The narrative begins with Masahiro saving a young wolf-girl named Shigure from slave traders, an act that sets him on a path to confront the corrupt systems governing the world. His wrestling background becomes a defining trait, as he employs grappling techniques and brute force to combat adversaries, often in dramatic and over-the-top battles. Masahiro’s mission evolves into a broader quest to liberate beastfolk from oppression, rallying allies and facing increasingly powerful foes, including human nobles, corrupt leaders, and otherworldly entities.

Key characters include Shigure, who becomes a loyal companion and symbol of the beastfolk’s plight, and Carmilla, a cat-girl assassin with a complex moral code who initially opposes Masahiro but later joins his cause. The story also introduces a variety of antagonists, such as the tyrannical human rulers who exploit beastfolk and the mysterious forces behind the world’s systemic inequality. Themes of justice, equality, and resistance are central, with Masahiro’s unyielding determination serving as the driving force behind the narrative.

The plot is structured around episodic conflicts, with Masahiro and his allies traveling to different regions, each presenting unique challenges and adversaries. These encounters often highlight the diverse cultures and struggles of the beastfolk, while also advancing the overarching goal of dismantling the oppressive systems. The series blends action, humor, and social commentary, with Masahiro’s wrestling persona adding a distinctive flair to the battles and interactions. The story maintains a balance between lighthearted moments and darker, more serious themes, creating a dynamic and engaging narrative.