Toaru Soragoto, Boku no Himitsu

A high school student named Shouta possesses the unusual ability to perceive the "Paradox," the invisible embodiment of a person's true emotions and thoughts. He can see and hear these figures, which typically accompany individuals. He encounters various strange cases, such as a Paradox wearing a disturbing mask, one that faintly cries for help, or another that has grown to an enormous size. Some individuals even have three Paradoxes at once. Guided by his own Paradox, Shouta attempts to understand the significance of these anomalies. His search for answers often leads to unsettling revelations.