Cast out by the Silvermoon clan for her impure blood, half-blood elf Viola enters Starfall Academy, seeking only to graduate and survive. On registration day, she accidentally triggers the soul chain of the ruthless Duke Sevian and becomes the shared soulmate of the Valentia twin elves. One brother resists fate; the other secretly yearns for her. Both carry the weight of a family curse that fractures their souls. The only cure lies in Viola's dormant Moonlight Sanctum power. Caught between the twin royals and their growing possessiveness, she wavers endlessly between resistance and surrender.