I'm the Good-for-Nothing Real Heiress, but I Know a Little Metaphysics

The Gu family's adored Seventh Young Lady turns out to have been switched at birth! The real heiress has finally found her way home... She's a good-for-nothing who can't manage a single subject and finds studying exhausting. The wealthy circles of the capital have never seen such a useless fool. The onlookers wait for a laugh. But she uses fortune-telling, face-reading, and feng shui to become the idol of entertainment stars, an external expert for the criminal investigation department, and an honored guest of the city's wealthiest families... She even helps her six brothers, who are desperately trying to win back their wives, bring their beloveds home and reclaim their children, turning the entire Gu family's fate upside down! The spectators are left speechless, and the way they look at the little girl changes. Just then, Qiao Er Ye, the richest man in the city, declares publicly, "My little Mo Qian can be a bit sharp-tongued. Just bear with it when you hear what she has to say." Everyone: "..." A bit sharp-tongued? Her words are practically divinely inspired!