In a world quietly being consumed by eerie, emotionless beings known as Smilers, a young boy named Kyron loses everything in a single moment. Left with nothing but a bloodstained blade and questions no one can answer, he steps into a path forged by pain and purpose.
As the Smiler infection spreads—silently stealing emotions and replacing them with twisted laughter—Kyron sets out to uncover the truth behind their existence and the ancient techniques used to fight them: the powerful Emotion Styles.
But emotion is a double-edged sword.
And the deeper Kyron goes, the more he learns—
Not all monsters smile.