"Nyan Tora. - Nyanko Trap!" is a manga series that blends elements of comedy, romance, and supernatural themes. The narrative centers around Tora, a high school student who has a deep aversion to cats due to a traumatic childhood incident. His life takes an unexpected turn when he encounters a mysterious girl named Nyanko, who possesses cat-like features and abilities. Nyanko reveals that she is a "cat spirit" bound to a curse, and her fate is intertwined with Tora's. Despite his initial reluctance, Tora becomes entangled in Nyanko's world, as her presence disrupts his daily life and forces him to confront his fears.

The story explores the evolving relationship between Tora and Nyanko as they navigate the challenges posed by the curse. Nyanko's playful and mischievous nature often clashes with Tora's serious and reserved personality, creating a dynamic filled with comedic moments and emotional tension. As the plot progresses, it becomes clear that Nyanko's curse is tied to a larger supernatural phenomenon, involving other cat spirits and ancient rituals. Tora and Nyanko must work together to uncover the truth behind the curse and find a way to break it, all while dealing with the complications of their growing bond.

Supporting characters, such as Tora's classmates and other cat spirits, add depth to the story, providing both comedic relief and additional layers to the supernatural mystery. The manga balances lighthearted humor with moments of introspection, as Tora grapples with his fear of cats and his feelings for Nyanko. The interplay between the human and spirit worlds serves as a backdrop for themes of trust, courage, and self-discovery. The series maintains a steady pace, blending episodic adventures with an overarching narrative that keeps readers engaged.