Both dramas start with embarrassing meet-cute encounters between a Hi-So woman and the son of a family farm, which leads to the them having a fake contractual marriage with the son of the family farm for mutual benefit, due to their family situations. In both dramas the hi-so women have to adapt to farm life and work while dealing with the sons who have lost their first loves in car accidents, which has made them slightly cold and indifferent to women.

Both have Hi-So women hiding in the Isaan countryside on a family farm, posing as the lover of the family farm son in order to escape from someone who wants to kill them. They both have to adapt to countryside life, culture and language while being protected by their fake lovers.

Both dramas have a unexpected pregnancy with a 6 year time laps . When the fathers realize they have a child they are adamant about taking responsibility and the possibilities of pursuing a relation ship with the mother.

In both dramas the wealthy leads hire people from the country side to marry them without knowing their full backgrounds; in order to trick their fathers who have imposed preposterous conditions for their marriage. The fake spouses are both looked down upon by their wealthy fathers in-laws and other family members who see them as ignorant, uneducated people of low social status. Both father in-laws and other family members try many tricks to force them get divorce. Both dramas have the theme of judging people by the social status rather than their character.

The male and female leads meet in high school because their mothers are friends.
Both male leads are self centered players/jerks who are clueless about love; they have placed the female leads in the little sister zone; taken them for granted and have paid very little attention to what is going in their lives. In both dramas the audience knows early on that the female leads love and supports the male leads in their daily lives, while standing quietly in the backdrop and their shadow.

The Mystic Nine are the ancestors of the characters in this story who formed the nine family consortium of tomb raiders. In this drama the current generation of tomb raiders are searching for and seeking answers about a lost expedition of missing people, which contained a previous generation of mystic nine family members. When they reference the elders/masters and Grand Buddha, they are referring to the family heads of the Mystic Nine.
It is the prequel to the Lost Tomb and second drama of the entire series.

In both people trying to survive living on earth when it loses the sun, while the earth is traveling through space to another solar system.

In both dramas the lead couples form a codependency bond as a result of lasting side affects from traumatic experiences, which leads to love. Both female leads turn into other people, one mentally the other physically and they both try to arrange the daily lives to hide and protect themselves from being found out. Both male leads are very rigid CEO's of family run companies in which family members and others are using any means to get rid of them, so they can take over the company. Both dramas have a very cute serendipitous second couple love story.

Identical twins separated in an unusual way as infants and one grows up wealthy and the other poor. In both dramas, the rich heirs switch places with their twin due to an illness that cannot be made public or reveal their vulnerabilities because there are family members and outside forces that want to steal their family's company.

Both are romantic medical dramas dealing with comforting people in pain and during the end stages of their lives. In both dramas, the male and female leads have experienced life-altering tragic events, which they feel guilt-ridden about. Both male leads have a nemesis who is hell-bent on destroying them do to misplaced anger and beliefs.

The lead couples fall in love while trying to catch the leader of a crime ring through detective work and espionage. Both of the women are strong will when it comes to their beliefs and convictions and they both have a chips on their shoulder. Both men are older affluent and have a variety of women chasing after them but come up with a scheme to keep their true love beside them.

A greedy overly obsessed scheming and conniving stepmother still's her stepdaughter's life for her own daughter. She does everything in her power to oppress her stepdaughter and to hide the truth.