Nishume Yuusha no Yarinaoshi Life

is a Japanese light novel series written by Tao Noritake, with illustrations by Nyumu. The series began publication on November 17, 2022 by ASCII Media Works under their Dengeki no Shin Bungei publishing imprint.

Synopsis
The strongest redo fantasy where the older sister and the reincarnated younger brother save the world for the second time in their lives! "――That means, Onee-chan was a hero!" Romolo was confused. His older sister Monica, who was picking up firewood just now, suddenly said something really strange. She said, "For some reason, two years later, she became a hero, and five years later, she died in a battle with the Demon King, and before she knew it, she was now ten years old." thing. At first, Romolo thought it was a nonsense, but when he saw his older sister using the magical powers she obtained in her previous life to defeat the town's intruders, he had no choice but to believe it. Monica aims to be her hero again and save the world! She decides, but when Romolo points out that she won't be able to do the same thing, "If you're Romolo, you should be able to solve all the disadvantages that will happen to us in the future!" "And what a reckless act!" But Romolo remained calm. because-- Because Romolo is a reincarnated person from another world who possesses the strongest "knowledge of a sage". "Thus, the situation for the second lap is in order!?" The hero (older sister) and wise man (younger brother)'s redo lives to save the world have begun!