Even I, a Good-for-Nothing from the Start, Can Find a Path to Advancement

This is a world where magic exists! Everyone is born with a strange ability: to summon a crystal that foretells their fate, known as a "Birth Spirit." If someone's Birth Spirit is a crown... then they are destined to become king! Yet Ced, born into a wealthy family, is widely known as a good-for-nothing. His Birth Spirit is a battered brass suit of armor... But one day, by chance, he opens the basement door...