Orphaned by a brutal war that stole everything he held dear, Erkin’s life is fueled by a single, burning desire: vengeance against the infamous Witch of the Sun. Now a renowned pharmacist in Mormeratta, the very land that shattered his family, Erkin is summoned to treat the reclusive “master of the castle”—a mysterious figure no one has ever seen. He reluctantly agrees, clinging to the hope that this new path will finally lead him closer to the monster who murdered his parents.

But fate, ever a cruel trickster, has a devastating secret waiting within those castle walls. What if the very person Erkin has vowed to destroy, the Witch he so desperately hunts, has been hiding in plain sight all along? What will Erkin do when his sworn enemy turns out to be the mysterious stranger he’s growing to trust, to protect, perhaps even to love? This is a crushing collision of hatred and affection, where the lines between friend and foe blur into an unbearable truth. Will his quest for retribution consume him, or will the spark of a new, unexpected connection ignite a path he never imagined?

Fantasy romance, revenge plot, hidden identity, enemies to lovers, war setting, magical world, emotional drama, pharmacist protagonist, mysterious master, devastating betrayal