Korosareta Heroine no Kanpeki Ending no Tame ni

Reincarnated as the heroine of a novel she once read, Veronica seeks revenge against her tyrannical father. Amidst a web of intrigue, she cautiously aligns herself with the enigmatic Prince Lowen and Duke Evan, who happen to be the murder suspects of her previous homicidal death. As Veronica carefully carry out her plan of revenge, she also finds herself drawn to Lowen and Evan, unraveling hidden truths of her past life.

(Source: POCKET COMICS)

Note: based on a Korean web novel, the comic was first published by POCKET COMICS in English (2024-04-23), but its first AniList-eligible publication was in Japanese by Comico (2024-06-12), and its Korean release was not until 2024-10-22 on KakaoPage. Thus by AniList priority rules this is categorized as a Japanese manga.