I Taught You with Restraint, so Why Are You Obsessed?

A devoted reader, unhappy with the frustrating ending of the novel she is reading, finds herself reincarnated as Eloise, the future ex-wife of the male protagonist, Ian. With a year to go before the divorce takes place, she sets herself the task of changing Ian's behavior before the return of the novel's real heroine, Diana. Ian, who was initially cold and seemingly emotionless, gradually develops an interest in her. Will Eloise's actions ultimately change the plot of her favorite novel?