Mushoku Tensei: Jobless Reincarnation

A washed‑out NEET reincarnates as a magical prodigy, vowing to fix his past one spell at a time.

Mushoku Tensei follows the unlikely rebirth of a 34‑year‑old NEET who, after a fatal accident, awakens as Rudeus Greyrat, an infant in a medieval‑ish world of magic. Retaining the bitter memories of his former life, he resolves to rewrite his story, wielding an adult’s intellect and a fierce drive to avoid his past mistakes. Under the tutelage of the enigmatic mage Roxy, Rudeus discovers a prodigious aptitude for sorcery, while his father Paul teaches him the art of the sword, forging a balanced foundation of both spell and steel. As he grows, Rudeus forges bonds with peers like the shy Sylphiette and later encounters a cast of mentors, rivals, and love interests that challenge his ideals. Each encounter pushes him to confront lingering trauma, question his own morality, and strive for a love he never tasted in his previous existence. The series blends sweeping adventure with intimate character study, offering a fresh take on the isekai formula that emphasizes personal growth over mere power‑gaming.

This isekai fantasy follows a reincarnated shut-in navigating a new life from infancy, but its core controversy is a protagonist with adult sexual awareness in a child's body who repeatedly crosses boundaries with minors. The series combines strong magical worldbuilding and character drama with explicit sexual content involving children that many viewers find deeply uncomfortable regardless of narrative framing.