The legendary three-day-and-three-night banquet hosted by Qin Buwen (as Prince Chang'an) at the Hall of Right and Wrong after receiving her princely title. Every plate and decorative piece was carved from ivory. The cost nearly equaled half the imperial treasury's annual reserves. She purchased every drop of fine wine in Chang'an and ordered the Chengping Army to distribute it across Yaoyun. The entire realm heard of this earth-shaking feast.