Recommendations

Both movies about hitman, raised by evil man. Wanting to do good. A hidden or inside councious, feeling of guide. Facing challenges on exit

Both main female leads are tough hitman. They are skill fighters. They love their family and love one. They have to balance their work and family sweet life

Both female lead were single mom, working women, that was put in a tough situation. They were brave determine to protect their child

Both Korean movies involve the main lead are skill fighter but wanting to leave the dark side. It shows soft and tough faces of a person. Good acting overall

Both are Republican Era mini dramas in which the reporter FL and detective ML are working together to solve murders and mysteries around the city.

Can't get enough of the Second Male Lead (Simon Lian as Duanmu Qing Feng)? Well he plays the MALE LEAD in this adorable drama about youth and growing up. The two dramas are night and day different BUT if you loved the SML in Lost Romance and want to see more of his lovely acting then give Youth a try! I promise you'll fall in love with him all over again.

Both dramas are about the relationship between a human and a merfolk and involve a shady character/originations attempting to capture and experiment on mermaids. Both FLs work at an oceanic institute.

Both dramas are about the relationship between a human and a merfolk, and involve a sinister person/group trying to capture/experiment on mermaids.

Both dramas are about the relationship between a human and a merfolk who are both seeking answers in a mystery surrounding a crime that happened to the human's family member.

Both dramas are about a romance between a water being and a human in an urban setting.
...................................................

While very different in tone and setting, both feature main characters who are mermaids and both are very visually pretty dramas.

both are short dramas with a revenge plot
both have romantic elements too
the time slots are different, yet there are royal families and their plots involved

It has almost the same story plot wherein the FL fell in love with the ML who's pretending to be mentally challenged. Also ML has 2 brothers.

FL here is smart same as in LWS.

the two have the same job and they want to know how their life is going to become like this.. ? ? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??

gothic mysteries with a pair of leads who constantly bicker but also protect one another, and both dramas discuss the class differences between characters