Both have similar genres ( Mystery, Law, Crime, Drama etc.)
Both leads are uncovering a major conspiracy
It seems as one of the lead's mentor is a part of the conspiracy in both shows

Both have Contract Relationships
The ML is rich while the FL isn't
Both had an incident occur which lead to them to temporarily maintain a contract cooperative marriage relationship.
Zhao Shu Zhen plays the grandmother to both ML's

They are both set in a historical period.
They're both comedic
The husbands totally adore their wives.
Both are in an arranged marriages but eventually fall in love.
There is a drizzle of politics.