Sihanburaseo Paeopaenneunde

As high society's most eligible lady, Sierra Fernein did whatever it took to please her family, despite their flagrant disregard for her. But upon discovering she has only a month left to live, she decides to go on strike from being a prim and proper lady and live life on her own terms. Shedding the Fernein name, she declares war on anyone who dares get in her way, including her family and a few pesky admirers. But with just 30 days left, can Sierra finally enjoy the life of her dreams? (Source: Tapas) Note: Includes 19 extra chapters.