Heather was born with a weak heart; she wasn’t supposed to live. In a moment of despair, her mother summoned a demon who gave the girl half his heart, binding their fates. There was only one condition; she would live only until as long as his powers lasted.

Unaware of its meaning, Heather grew up hiding the mysterious mark on her chest. Her life changed when she fell for the very demon who saved her, marking the start of a forbidden love.

What happens when Heather uncovers the hidden truths her aunt and the demon have kept from her?