Recommendations

Both have:
- action, crime & romance combined
- infiltration, and hence complicating relationships between the main leads and the villains
- lots of plot holes / illogical stuff
- strong romance and hot scenes between the main couple

I you liked the relationship of Jiang Lin and Li Bing, or the whole drama with Li Bings family, you will enjoy this drama. Both dramas show the relationships between different members of a family, showing the hardships of adolescence in a dysfunctional family and the the strong friendships that are created over the years.

Both dramas feature reincarnated lovers meeting again in modern day. In their past life in a historical era, both fell in love with each other but ended up with tragedy. Both couples are given chances to meet and fall in love again in the modern day current life.

It's similar in so many ways
the obvious Romance
the suggestive BL situations
the bickering between them
one is light the other is serious
the detective cases

Set in the similar period of the sino Japanese war and the rise of the communists. These underground spies really risked their lives to plot and scheme against the Japanese and (each other)

Similar relationship between two detective one older than the other
Both Bromance dramas
Both have their funny episodes
the crimes aren't that serious or gore or violent
Bothe are light hearted dramas for bromance fans

Both are wonderful dramas with outstanding lead actors.
• Similarities
- MLs are working as professors
- FL in MLFTS is an actress. FL in F&E is a voice actress
- The leads have met each other in past life, being reincarnated in this life (In MLFTS, only FL was reincarnated)
- Amazing on-screen chemistry
- Capable lead actors
• Differences
- MLFTS is a fantasy genre, ML is an alien from another planet
- F&E is a melo-drama.

Same FL in both
Both the plots revolve around business
Both have similar light hearted romantic vibes to them.....

There are tonal similarities--the use of lighting, close-ups, and silence to create certain moods etc. The story of XX is more dramatic, and the plot focuses on the female leads' broken friendship and revenge on a shitty ex; romance is secondary.

quiet, calm romance between the two leads. It should definitely sum up the similarities between the two, not too much drama(the over the top or cringey kind)

This is the perfect combo of 'friends to lovers' and 'hate to love' dramas.
What make both these dramas great is the amazing characters and the friendship development, you can't help but love them.
These are probably my two favorite cdramas to date. Enjoy both!

Women who take the blame for their boyfriends, end up in prison being falsely accused and also pregnant. They give birth and bring up their sons in prison.

It has older woman/younger man. they childhood sweethearts. In both dramas female lead hasn't really dated anyone.

Same relationship between senior detective and junior fresh one
they are both roommates in Detective A&B
there are love interests for both I think
there are detective cases to solve
senior detective treats junior very rude and superior

They are both brilliant dramas, i thoroughly enjoyed both. Both the FL have been gifted from birth with a special power that they must learn how to use and control. Both have 2 ML protectors of sorts only difference is in KO the protectors started of wanting to eat the FL to absorb her powers but end up protecting her quite quickly early on in the series. Both dramas ML can't help falling in love at first sight with FL. If you love one drama you will love the other drama its just a shame they never made a seconds season of KO.