"Trouble Evocation" is a supernatural action anime centered around the concept of evocation, the summoning of spirits or entities to perform tasks or combat threats. The narrative unfolds in a world where certain individuals, known as Evokers, possess the ability to summon and control powerful beings from other realms. These Evokers are often employed by organizations or governments to handle paranormal disturbances, protect humanity from malevolent entities, and maintain the balance between the human world and the supernatural.

The protagonist, a young and inexperienced Evoker named Haruto, is thrust into a high-stakes conflict when a mysterious organization begins exploiting evocation for destructive purposes. Haruto, initially struggling to control his abilities, is guided by a seasoned Evoker named Akira, who becomes both a mentor and a rival. Together, they uncover a conspiracy involving ancient artifacts that amplify evocation powers, threatening to destabilize the world. The story explores themes of power, responsibility, and the ethical dilemmas of using supernatural abilities for personal or societal gain.

Key characters include Haruto, whose growth from a novice to a skilled Evoker forms the emotional core of the series; Akira, a pragmatic and enigmatic figure with a hidden past; and Rina, a researcher specializing in evocation who provides crucial knowledge and support. Antagonists such as the shadowy leader of the rogue organization and their elite Evokers add layers of tension and complexity to the plot. The series balances intense action sequences with moments of character development, delving into the personal struggles and motivations of both protagonists and antagonists.

The narrative is structured around episodic missions that gradually reveal the larger conspiracy, culminating in a climactic confrontation that tests the limits of Haruto's abilities and resolve. The world-building incorporates a mix of modern urban settings and mystical realms, creating a vivid backdrop for the story. "Trouble Evocation" combines supernatural intrigue, dynamic battles, and moral quandaries, offering a compelling exploration of the consequences of wielding extraordinary power.