A man whose previous life was defined by relentless bad luck dies in an accident while trying to retrieve a stolen bag. He is given the chance to reincarnate into a new world and is reborn as Siegbert, a baby welcomed into the warm and loving Abel noble family. In stark contrast to his past, his new life is blessed with extreme good fortune, and he possesses an insanely high luck stat, as well as special abilities like an appraisal eye that lets him see detailed information and extraordinary magical power. He decides to use these gifts to live peacefully and protect his new family.

However, Siegbert quickly learns that his immense good fortune is a double-edged sword. His high luck stat actively attracts chance, powerful events or formidable enemies that present life-or-death situations. If he can successfully overcome these chances, his wishes will be granted, but failing them endangers both himself and those around him. The series is set in a fantasy world of magic and nobility, where Siegbert begins his life on the family estate with his parents and three brothers and one sister.

A significant turning point occurs when Siegbert experiences a great misfortune at a young age: the death of his mother from illness. This tragic event strengthens his resolve, and he vows to become the strongest to protect his remaining family from any future threats, leading him to begin a serious study of magic. The narrative arcs follow his journey from a reincarnated infant to a boy determined to conquer the dangerous opportunities his luck brings, confronting powerful adversaries to safeguard the legacy and warmth of his new home.