The main characters in both series are being chased by people who are trying to assassinate them. The main characters are able to defend themselves and use weapons; not only that, they're up against an organization with strong people.

The guardians do their best to protect their family from the psychotic characters in both of these series. They try to keep the child safe from the world in case of a crisis. The main protagonists gradually discover more about themselves and the past of their guardian. There are plenty of action scenes in both series that most viewers would find entertaining.

In short
-Many action scenes
-The Guardians are trying to protect the child/children
-Viewers and protagonist slowly discover the guardian's past through episode
-The Main Characters are able to fight
-There is a group of people trying to kill the main characters

- Both female leads don't know how the modern world works.
- Both dramas includes friendship and eventually getting to know each other
- The Male Leads let the Female Leads stay at their house until they find the Female Leads' relatives.
- Destined love? They both met before but they don't know.
- Both Female Leads are bright and energetic.
- The Male Leads act mean but actually worry about the Female Leads.