A thirty-four-year-old shut-in dies after reaching what feels like the lowest point of his life and awakens as Rudeus Greyrat, an infant in a world of swords and magic. With all the memories of his first life intact, Rudeus decides to treat reincarnation as a genuine second chance. He begins learning magic, forming relationships, and facing a much larger world while trying not to repeat the mistakes that defined the life he left behind.