Elva was once a princess, tied to the king of the Seelie fairies and known throughout the land. Until, in one moment, she was deprived of it. Now she has turned herself into a warrior. Furious and strong, she ends up on the Ice Mountain, where a monster rules. She needs to keep an eye on him, kill him if necessary, but not fall in love.

Donnaha was once an aristocrat among the dwarves until the Troll Queen saw him. She turns him into a bear with a curse. The curse can only be lifted by marrying her daughter. But when a fairy princess appears, he realizes there is another way to escape.

Determined to hate each other, they quickly realize that appearances are not the only thing that matter. When the Troll Queen takes him, breaking her side of the deal, Elva must follow her beloved bear east of the sun and west of the moon. To save him, she is ready to give everything.