Alchemy of Souls

Set in a fictional country called Daeho, the series is about the love and growth of young mages as they overcome their twisted fates due to a forbidden magic spell known as the "Alchemy of Souls", which allows souls to switch bodies. It follows the story of an elite warrior named Nak-su whose soul is accidentally trapped inside the weak body of Mu-deok. She becomes entangled with Jang Uk, who is from a noble family, and becomes his servant and master, teaching Jang Uk her skills as they both fall in love with each other. Three years after a tragedy, engineered by Jin Mu, that led Mu-deok to run wild and kill innocent people, Jang Uk, who returned from the dead as a result of the powerful Ice Stone inside his body, becomes a ruthless hunter of soul shifters and becomes increasingly isolated due to his heartbreak over the death of his love—Mu-deok. He then meets the mysterious heiress of Jinyowon, Jin Bu-yeon, whose words frequently echo those of Nak-su.