The Perks of Being an S-Class Heroine summary: "The Age of Transmigration" has become a global concern as those on the brink of death receive spam text messages selling life insurance. Tragically, a woman falls prey to this scheme and receives a cryptic message before passing on. In the afterlife, she is given the chance to reincarnate into a fictional world of her choice. Desiring a carefree life after her struggles, she selects a romantic fantasy novel. However, her granted wish places her in a difficult story called "Infinite Returns to Save the World," where death reigns supreme. As Ailette Rodeline, the daughter of a servant, she experiences tragic abuse leading to a bleak fate for the household. Fortunately, the woman discovers that she had unknowingly purchased a complete life insurance package, providing her with an enormous sum of money to invest in skills and useful items. To avoid Ailette's dark destiny, she must become self-sufficient and highly skilled to endure.