Shingo Itinomia is an ordinary 25-year-old Japanese man. His whole life consists of waiting for the next grueling day at his low-paying job, longing for the weekends, and daily work without purpose. However, one day he falls asleep in his bed and wakes up in a different world, in the body of a six-year-old boy. But luck is not on his side once again. He is only the eighth son of impoverished aristocrats and lacks the knowledge to bring their estate to prosperity, as well as any useful skills. The prospects only become slightly more joyful when Itinomia discovers he has magical abilities. However, he also needs to learn how to control them. The newly reborn eighth son, Wendelin von Benno Baumeister, who escaped from the fire into the flame, intends to survive in this new world and ensure maximum comfort for himself.