It has a main character who constantly lies about her life, like using a fake name and background of a rich person to scam other people. Anna's background is similar to Fei Ke; she was also used to being a very promising student, but due to one big scandal, she had to give up everything, including attending her dream university, but she still did not give up and tried everything to reach the top of society by scamming, faking identity, education background, and her entire life.
Both dramas deal around a group of people that is gathering because a supposed deceased person that they all knew named them in their testament. A death occurs and their relations to the deceased get investigated in order to find out who was how associated and involved in it. Both dramas give Agatha Christie novel-vibes. Both have a similar feel and theme.
In both dramas, the leads (FL in Anna and ML in Regeneration) were seen as the most promising student in their high school despite a humble background, but a transgression leads to their fall from grace, leaving them reeling. They both climb back up to the top again, telling lie after lie, before things start to crumble. In both dramas, they have a reporter friend who uncovers the truth, and both have dysfunctional marriages.
