Read The Prince Who Was My Fiancé in Name Only Apparently Loved Me / My Fiancé in Name Only Is Actually in Love with Me / My Prince Was a Fiancé in Name Only, But He Loved Me All Along / 名ばかり婚約者の王子様、実は私のことを愛していたらしい
The cherished daughter of a ducal house has only one complaint: the prince she’s been betrothed to since birth never shows his face—an “in-name-only” fiancé who won’t meet or lift a finger for her. After a sudden “accident” takes her parents, her uncle’s family seizes the estate, and she’s ultimately poisoned. Then she opens her eyes in the past, before the murder. Taking the affectionate nickname her parents used, she vows to change the future and reclaim everything that was stolen. As she moves, the person who steps in to protect her is the very prince who ignored her—revealing that the distant fiancé may have loved her all along.