Ikenie Akujo no Shiroi Kekkon: Mezametara 8-nengo, Katsute wa Goei Datta Koushaku-sama no Dekiai ni Naremasen!

A baroness named Ninette is seen as unscrupulous due to her natural charm that draws others in. After her stepmother and stepbrother seize control of the family estate, they force her into exile in a small dwelling, where a young boy named Till serves as her protector. She is later betrayed by her stepbrother and condemned as a sacrificial offering, though the event leads to her acquiring significant power. Upon returning to her town, she discovers that eight years have passed and resolves to live in solitude. Till, who has matured into an adult, still holds affection for her despite her sudden disappearance. He now proposes a marriage of convenience.