Jung Woong-in is a South Korean actor. He is best known for his roles in the television dramas Woman of 9.9 Billion (2019), Chief of Staff (2019), Ms. Ma, Nemesis (2018), Goodbye to Goodbye (2018), Switch (2018), Prison Playbook (2017 - 2018), My Sassy Girl (2017), Monster (2016), Yong-pal (2015), Splendid Politics (2015) and Pinocchio (2014).
Jeong Seo-yeon has a hard life even though she has been trying to find happiness in her life. Just as she loses all hope of living, she comes across 9.9 Billion. Kang Tae-woo, an ex-detective, tries to uncover his brother’s death that he suspects to be related to the 9.9 Billion. Can she hold on to this huge sum of money?