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Similar theme: an agency or group of actors who organize scenarios for their clients. One is more on romance where they play as cupids, while the other is comedy where the goal is to help clients overcome their traumas.

In both drama Male leads are from Mistress so legal wife hate his mom and him
In both Male lead come for revenge
In both Male lead have childhood sweetheart
In both Male lead try to seduce a women to get revenge

The fantastic (not to mention hunky and gorgeous) Jason Tauh has a main role in both of these Taiwanese series!

Youth? Check.
Journey of discovery? Check.
Friendship? Check.
Great chemistry between leads? Check.
Natural acting? Check.
Friends (that's basically enemies) to Lovers tropes? Check.
The story maybe not exactly the same, but you will find similar vibes in both

Both of these shows have a man who is stoic, dangerous and powerful who is seeking revenge in secret for the death of family. They also both control their own loyal guards, They both fall in love with a girl who wants only to live free and is very smart and crafty, making moves on her own to help herself and her friends. The LLTG mom and the Unchained Love empress are played by the same actress. One of them is clearly more evil than the other.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.

Han Se Kyung is a young woman with a very positive character. Her motto is "effort will take me as far as I want to go". She wins many designing contests and finally joins a clothing company. But, at work, Han Se Kyung does errands and chores rather than design. Meanwhile, the wife of an upper management employment at the clothing company humiliates Han Se Kyung. The wife is actually a former high school classmate of Han Se Kyung who didn't do better than her in school. This makes Han Se Kyung look back on her life.