Both are friends to lovers

Some *SPOILER* Similarities are:

The ML likes the FL First.

FL looks for other options than the ML at first.

The FL is successful and a bit selfish,

The ML is caring and selfless when it comes to the FL

Both have love triangles and exhausting second female lead but the ML only has eyes for the FL

I really don't like comparing these two because Jark Sadtroo is so much better than TDA but if you want a similar storyline, watch Jark Sadtroo instead its my favorite lakorn and serves many romantic scenes as opposed to The Deadly Affair or should I say *Meena's* affair

Both are set in Thai historical periods, I'm not sure how similar they are in plot wise but the first combination of Mario and Kimmy was similar in many ways, this is not a sequel but a similar story to it, so I decided to add this, but this lakorn is not released.

The ML in TDA wouldn’t take advantage of the female lead, but in behavior they seem alike especially the drama with OW. Both are equally as gripping doe.

Both SLMR, and RP have the same main leads, RP is the male lead Nadech’s highest rated lakorn in his career, many people like this pairing!

Both male leads misunderstand female lead first
Enemies to lovers
Obsession
Male chases female first
Forced kisses
Death of lover in both
Great chemistry

Originally was supposed to be a sequel to Thong Ek but storyline changed still basic elements about Mor Luang is still similar to Thong EK such as leads cast, herbal, and historical time period.

Not that similar but some similar instances I saw with Raeng Pradtanaha and Praomook is that (SPOILER ALERT)
:1.) Both female leads have an arranged marriage with the male lead
2.)Both female lead's try to take revenge on the male leads by some sort of seduction game
3.)both male lead's hate the female lead at the start.
4.)Both are slow-burn romances.
5.)Both male leads are prone to getting jealous.
6.)Both have married couple problems and it might go as far as to divorcing.
7.)Both Female Lead's haven't succeeded in their plans to get the male lead's to fall in love with them (but Praomook might, not finished airing yet)
8.)Both Male Lead's have an ex girlfriend who tries to screw up the main couples relationship.
9.)Both are childhood friends/acquaintances of some sort.
(In Raeng pradtanaha, the male lead has been in love with the female lead from the start of the drama, in Praomook the viewers feel like the male lead has loved the female lead from the start but it isn't never revealed or not revealed yet...)
(In Praomook though the female leads gets jealous more than the male lead and in Raeng Pradtanaha the male lead gets more jealous often than the female lead)

Both are currently airing
But they have the same basic similarities:
-Good Twin and Evil Twin
-Innocent Twin
-Manipulative Twin
-Ugly Beauty is Chinese (more light than Song Sanaeha)
-In Both dramas, the evil Twin is the famous actress Twin
-Both have like Love triangle...'S
-Will update more once done with airing

Both are different a lot in terms of storyline
Both have amazing chemistry
In Jark Sadtroo Soo Hua Jai its the Male lead who falls first and is mistaken by the female lead in Kluen Cheevit it is the opposite
It reminds me of Kluen Cheevit bc of the slap kiss and also amazing chemistry
Jark Sadtroo is My favorite
Kluen Cheevit is my third favorite lakorn
Both are worth watching
You can decide which one you liked better bc they are both amazing

-Rich playboy falls for a poor woman, who is not that great
-Both Male leads at start try to play with female lead feelings but soon fall for them
-Both male leads were crazy in love with the female lead, but in P.S. Man she rejects him there is no memory loss
-Both male leads are hurt by the female leads keeping secrets from them
-Both Male Leads are exponentially aggressive for some sane reasons, Autumn's Concerto he is really more pitiful.
- Both have children in them though, the main couple does not conceive a child in P.S. Man
-Really good chemistry between leads
-Amazing dramas, they don't drag
-Autumn's concerto is more enjoyable because its an one time drama nothing can recreate it even if it has an cliche storyline
-Also there are no annoying female leads in both the dramas
-P.S. Man uses the childhood friend trope xD...

Same as She Was Pretty's description although, the Second Male Lead Syndrome might be even stronger in Pretty Li Hui Zhen : ( Lol but anyways Pretty Li Hui Zhen also gives out an life lesson so I mean Ig watch it if you decide to watch She Was Pretty and could bare through the Second Male Lead Syndrome in that one, and if your coming from there watch My Little Happiness for a not so frustrating character, good chemistry and excellent chemistry between Second Couple and want a drama to heal your broken heart xD.