Recommendations

Both are serious scary horror works.
Both are an anthology of stories
(My Rating for these is 8.5/10 n 10/10.)
Both are Very entertaining in this genre.
Horror genre lovers shouldn't miss watching these.

Both FLs are transported through technology from the modern era to ancient times where they end up running a farm and rescue the wounded ML who has a hidden identity.

Both shows feature a quirky duo that solves mysteries that range from something as innocuous as one-sided love to gruesome murders, mixing slice of life feel and tale of profound friendships with murder investigation.

Both have a similar vibe. Detectives, mystery, light vibes, comedy, but with proper revelations.
Also, the chemistry among the cast is nice to see.

Both are mini dramas that center around the characters slipping in and out of a complex dream world being controlled by someone else.

Both are mini dramas in which the FL is a self aware character in a historical novel, fated for a bad ending, who decides to fight her fate and changes the story. This leads to her becoming entangled with the ML who is initially antagonistic toward her.

I would recommend this if you’re trying to find kind of enemies to lovers. In We Best Love, one of the characters isn’t fond of the other but the other character really likes them and wants to talk to them more just like Our Youth! We Best Love is so good and i def recommend it! give it a chance :D

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These 2 dramas are from the same source material. Leads are together in college but ML dumps FL to follow SFL abroad. FL's company has formed a venture with ML's company (which ML plotted) so that FL has to work with ML. FL has a sickly grandmother and a former boyfriend who also works at ML's company. SFL is evil.

Two Kim Dong Hwi thrillers with morally gray protagonists. A Christmas Carol is a lot darker than The Deal, but Kim Dong Hwi's character is a lot nicer in it.

Some of the same actors and by the same company, both are mini episodes about couples love (although kiss x kiss x kiss has more of a focus on kissing, half of shunkan love also features kissing).

Korean thrillers that delve into moral ambiguity, obsession, and the consequences of human actions.

Both dramas foreground the aftermath of singular decisions: a revoked license driving Se-ok to illegal operations, and a botched murder-for-insurance scheme igniting a chain reaction of crimes.

Together, they illustrate the landscape of Korean thrillers that probe how far people will go when pushed by past sins or professional downfall.

It's because both are the same work, the first one is drama and the second one is special episode of this drama

Leads in both dramas have a relationship in college, ML follows SFL abroad, ML pursues FL after he returns in 5/6 years. Toxic SFL.