Rogietti, a genius curse sorceress renowned as a once-in-several-centuries prodigy, met an unjust death after being betrayed by the very companions she trusted. Reborn as an orphan girl named Rosien, she spends her days scavenging through alleyway trash—until one day, she encounters the dazzlingly handsome Kalian Winyark. Drawn in by him, she decides to follow him to the Winyark household. Calling the frail and somewhat reckless Kalian “big brother,” Rosien begins to enjoy peaceful days at his side. However, during a continental summit, she discovers a lost stellar relic belonging to the Winyark family. Knowing the relic has a fondness for beautiful men, she brings Kalian along to meet it, but… Huh? Something seems off about her big brother… She’s never seen him like this before…!?