"Mushoku Tensei: Isekai Ittara Honki Dasu" is a Japanese light novel series written by Rifujin na Magonote. The story follows Rudeus Greyrat, a jobless and hopeless man who is reincarnated in a fantasy world after dying in an accident. Determined to live his new life to the fullest, he vows to make the most of his second chance. In this new world, Rudeus discovers magical abilities and embarks on adventures while forming relationships with various characters, including Sylphiette and Eris Greyrat. The series explores themes of redemption, personal growth, and the challenges of starting over in a different life.