My Fiancé After the Rain

On the day of her wedding to a wealthy heir, a noblewoman's life is cut short by a mysterious "accident." She wakes up in a different body, only to discover that her new identity is the fiancée of her former groom's younger brother. Desperate to find out who murdered her and uncover the dark secrets of her in-laws' conglomerate, her thrilling second life for revenge and truth begins.