Both dramas are fantasy romance. Both female lead are cute and childish. The fact is,one female lead is from the past and another female lead is an alien. So they both act like they are new to the modern world and create hilarious moment. Both male lead are CEO and they are good at their work. Both MLs can't help but fall for the FL head over heels. Both ML show a lot sweet jealousy scenes . Both Male lead has a evil step mom and a step brother who is not interested in family business . Oh, how could I forget that the both ML have one kind of illness too . And surprisingly those illness occures because of a past troma related to their biological mother. The fact is, both ML tries to hide their illness. I will say there are also some similarities I found but it would be better not to spoil future viewers. So enjoy.

If you like comedy, fluffy, fantasy romance then both of the series are highly recommend. Both of the series are my favorite.

Both are Chinese Parallel universe drama.
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Very different story. But both are Chinese and there are parallel universe theme..
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Time travel. Tragedy. Lover's death. Highschool life. Love triangle.. Similar genre. Heartbreak . Bittersweet ?

Storylines have 0% similarly. But in both dramas the FL is a human and ML is an animal. Fox and Werewolf

Nothing same . But same . I mean in both dramas are animal based. Like in TONT 1938 the ML is ghumio, FL is a owl , SML is a ghumio and villain is tiger . And in Princess And Werewolf the ML is the king of beast clan. He himself is a werewolf. And except the FL almost all characters are animals here . Although TONT 1938 is deep story of action, mythology,fantasy and bromance. Meanwhile The Princess And The werewolf is mainly a fantasy sweet romcom

In both dramas FL and ML share age gap. And in both drama it's FL who fall in love with ML at first sight and try to pursue him. Although Hidden love focused over School, college I mean students life . Meanwhile Go go squid never focused over student life since it's an eSports drama. Both dramas can be considered decent modern sweet romance . If you like any of them you shouldn't miss the other one.Both are sweet. Don't miss any of them if you are a sweet lover like me.

Go go Squid is funnier and a lot of comedy senses .
Hidden love doesn't contain that much humor. It's a serious romance drama than a romcom. But both dramas are sweet

Plot, genre nothing is similar. But the ML and FL of "The Law Cafe" are present in "A Korean Odyssey" .

In both female leads are food or desert blogger. Both dramas related with desserts and sweets . Both are simple but very sweet and fluffy story. Even most importantly in both drama there is a second lead couple who are more mature than the main couple. Actually in both dramas main couple are sweeter comparing the second lead couples. Very much similar vibe . If you like one of them don't miss another. "Drunken in Good taste " is quite shorter than "Since I met U ".

Both are vampire fiction . If you want to watch vampire stories , you can put these on your watchlist

In both drama one partner is an alien and another one is a normal human being.In my girlfriend is an alien it's the girl who is an alien and in starcrossed lovers it's the boy.

Pardon my grammertical mistakes

Completely different genre with the same leads. If you like Kento and Tao in Alice in borderland 2 you shouldn't miss orange.
Orange (Genre~ youth, romance,fantasy, psychological )will make you cry like a river .