Alexander Grim, a cunning charlatan who claims to be the world's strongest psychic, thrives on the desperation of others. Using an ancient artifact known as the Ring of Adaptability, Grim deceives those seeking help, all while pursuing his singular goal: immense wealth. His latest victim is Kagami, a young girl possessed by a malevolent force. In a dramatic exorcism, Grim successfully expels the entity from Kagami, only to inadvertently absorb part of it into himself. As he navigates the chaotic landscape of Kagami's mind, he discovers her untapped psychic abilities. Realizing her potential, Grim decides to exploit Kagami's power, promising to train her while hiding his true intentions. As Kagami's powers grow under Grim's harsh guidance, she begins to see through his manipulative facade. Although she plays the role of the obedient student, she silently vows to master her abilities and forge her own path, free from Grim's control. The novel follows their twisted alliance, exploring themes of power, manipulation, and the struggle for autonomy. As Grim's greed drives him to greater heights, Kagami's resolve to break free intensifies, setting the stage for a climactic battle of wills. In a world where deception and ambition reign, both Grim and Kagami must navigate their intertwined fates to achieve their ultimate goals.