Woman of 9.9 Billion () is a 2019 South Korean television series starring Cho Yeo-jeong, Kim Kang-woo, Jung Woong-in, Oh Na-ra and Lee Ji-hoon. It aired on KBS2's Wednesdays and Thursdays at 22:00 (KST) from December 4, 2019 to January 23, 2020.
The story of an unfortunate woman named Jeong Seo-yeon who finds herself with 9.9 billion won.
The first script reading took place in August 2019.
In this table, represent the lowest ratings and represent the highest ratings.