Yami Sute Ana

Known as the "Pit of Darkness," there exists an empty void capable of erasing anything cast into its depths from the very face of the Earth. Kasuga is a diligent and hardworking boy whose earnest nature makes him an easy target for exploitation by his peers. Constantly taken advantage of by those around him, he endures his daily life with quiet perseverance, never expecting that a routine school activity would soon shatter his understanding of the world entirely. The turning point arrives during a class field trip dedicated to cleaning duty. While carrying out his tasks, Kasuga stumbles upon a massive, bottomless chasm hidden away from ordinary sight. In a moment of carelessness, he accidentally drops something into the abyss. Rather than simply vanishing without consequence, the lost object triggers an impossible phenomenon, revealing that the pit harbors a terrifying and inexplicable power: the ability to distort reality itself. Suddenly thrust into a situation far beyond his control, Kasuga must confront the unsettling truth of what this dark void can truly do.