“9.9 Billion Woman” is a story of a woman who faces the world after coincidentally getting her hands on 9.9 billion won (approximately $8.2 million) in cash. Jung Seo Yeon’s family suffers from her father’s violence, and although she temporarily finds happiness with an affectionate man after leaving her prison-like home, she becomes resigned to her fate as she continues to wander in search of happiness.
Kang Tae Woo is a nonconformist with the nickname “crazy bull” for always charging forward without caring about what other people think when he sniffs out a case. After being falsely accused of taking a bribe, he leaves his dream job as a cop, and he wanders listlessly without any hope or goals when his younger sibling, his only source of pride, dies. While trying to uncover the real reason behind his sibling’s death, he meets Jung Seo Yeon.
In order to save her father from an accident, 26-years-old Kim Hye Ja uses a mysterious watch to rewind time in an attempt to prevent the accident, but fails. Desperate, she ends up rewinding the watch too many times and accidently aging herself, becoming a 70-years-old.
Confused and oblivious as to how she ended up like this, she sets on a journey to put everything back on track. Along the way, she encounters her family and friends who now do not recognize her, including Lee Joon Ha, a young man she loved, who yearns for her while struggling with his life.
When 70-years-old Kim Hye Ja and the young Lee Joon Ha come together to form an unlikely bond, a devastating and life-turning truth is revealed, the crux of all the time she lost.
