"Bemubemu Hunter Kotengumaru" is a fantasy-comedy anime series that revolves around the adventures of Kotengumaru, a young and inexperienced demon hunter, and his companions as they navigate a world filled with supernatural creatures and absurd challenges. The story is set in a whimsical universe where demons, spirits, and other mythical beings coexist with humans, often causing chaos and mischief. Kotengumaru, despite his lack of skill and confidence, is determined to follow in the footsteps of his legendary ancestor, a renowned demon hunter. His journey is marked by a series of comedic misadventures as he attempts to prove his worth and live up to his family's legacy.

The main cast includes Kotengumaru, whose earnest but clumsy nature often leads to humorous situations; his loyal and sharp-tongued sidekick, a small demon named Bemubemu, who provides both comic relief and occasional guidance; and a variety of eccentric characters they encounter along the way, including rival demon hunters, powerful spirits, and quirky villagers. The narrative is episodic, with each episode presenting a new challenge or enemy for the group to overcome, often blending slapstick humor with lighthearted action.

Themes of perseverance, friendship, and self-discovery are woven into the series, as Kotengumaru gradually learns to harness his potential and embrace his unique approach to demon hunting. The interactions between the characters drive much of the story, with their contrasting personalities creating dynamic and entertaining dynamics. While the tone is primarily comedic, the series occasionally touches on moments of sincerity, particularly in exploring Kotengumaru's growth and the bonds he forms with his companions. The world-building is imaginative, featuring a mix of traditional Japanese folklore and original fantasy elements, which adds depth to the setting and enhances the overall narrative.