Akuyaku Reijou no Taida na Tameiki

A woman finds herself reborn as a villainess in a world that lacks modern entertainment like doujinshis, otome games, and smartphones. Fearing exile due to her position in the heroine's romantic path, she resolves to combat her boredom by using her past-life knowledge to create toys and romance novels. Her efforts lead her to become a favored entrepreneur of the queen, seemingly altering her fate for the better. However, the novel she authored inadvertently triggers a destructive outcome, leading her toward an unforeseen and dangerous ending.