Serafina secretly sacrificed half her dragon flame to cure her lover Onyx's terminal illness, faking a betrayal to protect him. Three years later, Onyx is a powerful clan leader who bitterly torments her for her past abandonment. As Serafina's health fails, the truth of her sacrifice and a hidden poisoning plot are finally revealed. The two must undergo a perilous ritual to fuse their flames, risking death to reclaim their love.
