A man who suffered from relentless bad luck throughout his entire life meets his end trying to retrieve a stolen bag from a thief. Instead of oblivion, he is given a second chance and is reincarnated as Siegbert, a newborn baby in a warm and loving noble family in a fantasy world of magic and monsters. Blessed with silver hair, purple eyes, and the love he never knew, he vows to protect his new family and live a peaceful life.

However, his past misfortune has been reborn as its extreme opposite. Siegbert possesses an insanely high luck stat, a rare existence known as a fortunate person beloved by the gods. This divine favor grants him cheat-like skills, including an appraisal eye that allows him to see all information in detail, and extraordinary magical power that covers all advanced attributes. But his good fortune comes with a cost; his extreme luck actively attracts chance, powerful and dangerous opportunities that manifest as formidable enemies and life-or-death situations. To seize these chances means to have his wishes granted, but failure could mean ruin for him and everyone he holds dear.

The story follows Siegbert from infancy as he grows up within the Abel family, which includes his parents, three brothers, and one sister. After the death of his mother from illness, his resolve hardens to become a special being, the strongest, capable of protecting his family from any threat. He is soon joined by Hak, a male white tiger cub who is a sacred beast, whom Siegbert saves and forms a magical contract with, gaining a loyal companion. As he confronts one chance after another, Siegbert must navigate a world where his greatest blessing is also a trigger for constant peril, ultimately fighting not just for his own survival, but to fulfill a generational legacy and achieve redemption for his family.