In 17th century Europe, in the depths of a forest, lived a monster boy named Isaac who would devour all who entered his forest. Yet, he saved a girl named Livana solely because her flame-like hair resembled his mother's. In the process of this, memories of his mother are stirred up.

Meanwhile, Livana's family is continuously embroiled in a series of unfortunate events, and Livana herself is rejected by everyone due to her hair color. But Ethan has always adored her, and her brother seems to have unusual feelings for her. How will these people's feelings intertwine...?