A soul meant to be a prince awakens in the body of a saintess. Stripped of his past memories but retaining his personality, the man finds himself as an infant, fleeing for his life alongside a mysterious woman. Chased by armored knights, survival becomes his first battle—until he is saved and raised by a secluded tribe.

Years pass, and he begins to question why his mature, adult mind feels strangely at odds with his small, delicate body—only to discover that he has been reborn as a female. Answers come when he meets Kanav, the grim reaper in human form, who reveals the truth: his soul was never meant to inhabit this body. He had been chosen to reincarnate as the kingdom’s prince—a figure fated to save humanity—but something went wrong. Now trapped in the body of Saintess Ikuette, he learns that the true Ikuette has taken his place as the ruler of the kingdom.

The cause of their twisted fates runs deeper than a mere mistake—a failed reincarnation, a kingdom lost to corruption, and a mission left unfinished. The angel of reincarnation has been petrified, and and only Ikuette and the girl-turned-prince can set things right.

At first, the man-turned-saintess Ikuette refuses—until Kanav offers him a deal: a chance to reclaim the body that was meant for him. Tempted by the promise of power and status, he embarks on a journey searching for his manhood.