A 34-year-old unemployed shut-in, after being hit by a truck, is reincarnated into a world of swords and sorcery as an infant named Rudeus Greyrat. Retaining the memories and regrets of his past life, he vows to live this second chance to the fullest, determined not to repeat his previous failures as a NEET. As a prodigy in magic, Rudeus trains under the demon mage Roxy Migurdia, befriends the shy half-elf Sylphiette, and later becomes a magic tutor to the volatile noble heiress Eris Boreas Greyrat. His childhood, however, is shattered by a catastrophic event known as the Teleportation Incident, which scatters his loved ones across the dangerous continents of the Six-Faced World. This disaster forces Rudeus into a desperate journey of survival and reunion, confronting ancient prophecies, divine manipulations, and his own lingering trauma to build a life of meaning.

Mushoku Tensei: Jobless Reincarnation – Recollections is an anthology that compiles many of the short stories and bonus chapters originally released with the first ten volumes of the main light novel series. Published on March 25, 2022, by Media Factory, the collection revisits the early life of Rudeus Greyrat, expanding on moments only hinted at in the primary narrative. The book includes a newly written short story alongside an interview with the original author, Rifujin na Magonote. This compilation serves as a companion piece, offering deeper insights into the formative years of Rudeus's journey, from his infancy in Buena Village through his adolescence and the immediate aftermath of the Teleportation Incident. It fleshes out the perspectives of key characters, including his father Paul, his teachers Roxy and the warrior Ruijerd Superdia, and the various members of his growing family, providing a more detailed look at the relationships and world-building that define the epic saga.