29 years old. Executive Director of Taeseong Group and the Chairman's only daughter. She claims to have married Kang Doyun in secret and possesses the most concrete evidence. However, she had a major argument with Doyun the day before the accident and is hiding the fact that she took his phone and laptop immediately after the crash.

27 years old. She remembers Doyun's past and their shared memories more accurately than anyone else. She insists she is Doyun's real wife, though official marriage records are hard to find. Most importantly, she knows about the existence of a secret account linked to the missing 30 billion won.

30 years old. CEO of Lumen Capital and Doyun's business partner. Though not legally married, she claims they lived together as a couple. She knows the source of the 30 billion won and what Doyun was doing right before the accident, but she is concealing a crucial fact.

26 years old. A mysterious woman whose identity cannot be properly verified. She knows Doyun's private physical traits and even his safe combination. She claims she was in the car with Doyun at the time of the accident, but police records state Doyun was alone.