"Everyone's a monster. Some just show it less than others."

A small meteor struck the earth close to central Europe in the late 1800s. No one knows how or why it happened, but shortly after, monsters started appearing in the populace, ravaging and eating humans alive.

However, the appearance of monsters was merely the tipping point that changed society forever. Along with the phenomenon, humans started to change, causing their senses to heighten. Almost as if it were a superpower. From then on, humans began cultivating their new-found powers, but counterintuitively, the dangers of monsters kept increasing along with the phenomenon.

Far into the future, the story follows Sen, a white and black-haired 16-year-old boy. He was smart, blunt, and concise, acting on critical thinking rather than emotions. However, not everything came naturally to him, like his genius brain. He was deprived of a necessary power the rest of the world welded... A Super Sense.

Regardless of his disability, he was determined to find someone, someone who had been taken from him all too soon.

Along his journey with twists and turns, he uncovers deep-rooted secrets that were better kept sealed while realizing the future that would inevitably come.

Or are the future, past, and present all connected?