Are You the One

Both these dramas show the male lead as a military leader who is part of the imperial family. Both MLs start off suspicious of the female lead and stays by their side to find out information. In both dramas, the male lead establishes living arrangements that keeps them close to the female lead. In Both leads are smart and work almost independently but still together. They both have different agendas but have respect for the choices of the other. In both dramas the ML has a hidden identity from the FL - at least in first part of drama.

Trust me on this. Female leads are both entrepreneurs who hate being walked all over... Both MLs fall first and fall hard! They both struggle with class differences too, just trust me and watch.

Smart and business-savvy female lead. Both FL's have calm temperament and approach their problem and family matters/concerns with a composed attitude. Both are also have good relationship with their grandfather's. The male leads are both dependable men and apparently common with the double identity trope. The ML's hold high positions in society but have a complicated distant connection to the palace/imperial family. In short, both dramas are about, double identities (male lead) and business/merchants (female lead).

In both dramas FL and ML are rivals. FL lost her memory and found by ML. In AYTO, ML lied about their relationship

This is very similar… everything is very similar if you liked Serendipity you will definitely enjoy Are You the One more

Both dramas are
- chinese historical dramas
- arranged marriage
- strong and capable male leads
- cute female leads
- wonderful chemistry
- great pairing

Both are ancient costume dramas starring Zhang Wan Yi as MLs. Both have hidden identities of main characters and some interesting premises.

Identical in main plot: Female lead loses memories, male lead pretends to be her romantic partner for revenge based reasons. Both parties fall in love along the way.

Both are ancient costume dramas starring Zhang Wan Yi as MLs. Both have hidden identities of main characters, manipulation and some interesting premises.

From same novel writer
Strong ML, Strong FL
Let's say both have writers same writing style and it's more focosed in Main CP's story than extra thing.
ML in both is prince

Both are ancient costume dramas starring Zhang Wan Yi as MLs. Both have hidden identities of main characters, mystery and some interesting premises.

These two dramas are
- ancient costume dramas
- main leads are married to each other for a reason at first
- developing feelings for each other
- the main couple stay strong together in hardships

These two dramas have
- main couple as husband and wife and new spouses relationship
- main couple stay strong together in hardships and struggles

There is a lot of similarities between these two dramas :
- Smart FL and ML
We see them being smart beings, we don't have to be told. They are great strategists.

- Mighty and competent ML
ML are young competent generals who understand what is their duty and give it their all.

- Beautiful and graceful FL
FL are gorgeous, dressed great and have a very graceful demeanor. Not only that, they are women of their time who act according to the etiquette of their era while being avant-garde.

- Power couple
The actors share great chemistry and complement eaxh other's looks. Their characters understand each other well and are on equal footing.

The humour is the same. They both have serious plots and geeat performances but out of nowhere you are laughing with tears in your eyes.