"Kiruru Kill Me" is a manga series that blends elements of dark comedy, psychological drama, and supernatural intrigue. The narrative centers on Kiruru, a high school girl who becomes entangled in a bizarre and dangerous game orchestrated by a mysterious entity. This entity, known as "Kill Me," grants Kiruru the ability to see the "death count" of people around her—a numerical value indicating how many times they have died in alternate realities. However, this power comes with a grim twist: Kiruru is compelled to kill those whose death counts reach zero, as their survival threatens the balance of existence.

The story unfolds as Kiruru struggles with the moral implications of her role, grappling with the guilt and trauma of taking lives to maintain the fabric of reality. Her interactions with classmates, friends, and strangers are fraught with tension, as she must navigate the ethical dilemmas posed by her power. The series delves into themes of fate, free will, and the consequences of one's actions, as Kiruru's decisions ripple through the lives of those around her.

Key characters include Kiruru's close friend, who becomes a confidant and emotional anchor amidst the chaos, and a rival figure who challenges Kiruru's resolve and questions the legitimacy of the "Kill Me" entity's motives. The narrative also introduces a series of episodic encounters with individuals whose death counts are at risk, each presenting unique moral quandaries and emotional stakes.

As the story progresses, Kiruru uncovers deeper layers of the "Kill Me" system, including its origins and the possibility of breaking free from its constraints. The series builds toward a climactic confrontation that forces Kiruru to confront the true nature of her power and the sacrifices required to alter her fate. The manga's tone oscillates between moments of dark humor and intense psychological tension, creating a compelling exploration of its central themes.