The Sold Young Lady Is Protected by Her Brothers

"Tarina, who lived in an orphanage until the age of six, was suddenly adopted by a wealthy businessman—because of her purple-golden eyes? Those very eyes are the symbol of the Earl Elber family. The businessman swapped Tarina’s eyes with his own daughter's. From then on, his daughter became the heiress of the Elber family. The family may recognize her, but we don’t! Her three powerful older brothers protect Tarina fiercely. To them, Tarina is their one and only sister."