I'm a mob that can be saved in 10 years, but I refuse to be held back for 10 years. I'm running away right now.

Young Countess Lilyjen, overcome with grief at the death of her mother, is suddenly flooded with memories of a past life. She realizes that she has been reborn into the world of her favorite novel, one she knew by heart, complete with a setting book, collection of illustrations, and even an anime adaptation. But as she settles in, Lilyjen discovers something shocking: in this world, she is not the heroine... but the heroine's half-sister (mob!)! Memories of the plot flash through her mind like a kaleidoscope, and the fate that awaits her is cruel—to be rejected by her own family, to end up responsible for a noble house in decline and a sick and ruined father. ———Unacceptable! Upon awakening along with her memories, Lilyjen also discovers a power: healing magic. "I will use this power above all else, for you, my dear brother Theobald!" Determined to change her tragic future, Lilyjen leaves her childhood home and sets off for the border marquis Ashgyle, her uncle, to save Theobald, her cousin who is on the verge of death after overusing his magic...!? A small feeling gives rise to a mad passion, from which there is no escape once it has taken hold! Love envelops love, and devotion grows ever stronger—♥️ A sweet, syrupy, and completely captivating love story!♥️