Porque Esta é a Minha Primeira Vida (2017)

Same director, so it creates a similar feel. If you laugh while watching What’s Wrong With Secretary Kim, Because This Is My First Life will make you laugh.
Both male leads don’t believe in love, but end up falling in love.
Funny important person giving advice to the male lead.
Same sound effects.

Both dramas are very progressive and make a social commentary about the struggles women face in and outside the workplace. From sexual harassment to gender discrimination and everything in between. Both are dramas that will leave you thinking.

contract marriage, cold male lead, adorable couple! well dont worry about the chemistry, the chemi was lit

Beside both have same male lead, both drama also very heartwarming. And they have similar plot so far on the fact that there's circumstances that make the leads live in the same house.

Similar:
- ML had trouble with his family which he half resolves and lets go of
- FL is cheerful but not an airhead
- ML is considered expressionless
- Funny elements mixed in with more dramatic plot
- Relationship evolution and chemistry between couples

Difference:
- BTMFL is more slice of life, while DOBY has supernatural elements
- BTMFL shows life youth as office workers, while DOBY shows celeb life
- BTMFL focuses on meaning of love and marriage for a multi-cast while DOBY focuses on main couple's love story

BOTH
three best friends going through love and life, bickering and helping each other with their love lifes. Both dramas deal with contract relationships (each girl has a contract relationship in kuankaantong.) all the characters are quirky and entertaining

Both ML are cold at the beginning and then change. Both FL are sincere and direct, which is refreshing in dramaland.

the story revolves around realistic love story and problem that community face nowadays...
a really mature story that will we think about love and live in a different perspective...

A group of women supporting each other in friendship as they deal with life and romance problems. However, it's at the next level because its realistic relationship problems are in a more post-marriage setting. A good mix of fun comedic moments contrasted with serious heartbreaking moments because sometimes life happens that way. This isn't their first life, but it just might be their first happy ending.

They both have beautifully written characters who break out of the standard tropes. The things they go through and the way they react in both shows make for unique stories.

Both dramas are quite realistic, yet have funny moments. While Failing in Love is a drama about teenagers and their struggles with school and first loves, Because This Is My First Life is a drama about adults at the beginning of their 30's , dealing with life problems such as marriage and work.

If you are looking for a drama that focuses on parks of marriage, you should definitely try Matrimonial Chaos. One of the main plots of BTMFL is Marriage, but it is the only plot of Matrimonial Chaos! But the acting of those renowned actors will blow your mind with their mind-blowing deliveries!

If you liked one of these two, it's an assurance that you'll also appreciate the other. These two dramas have a few similarities, to name a few:

1. Both believe in the beauty of strangers. In both their first episodes, we clearly see how each show highlights healing with the help of strangers

2. Cinematography. Both shows have a similar color scheme and feel.

3. Maturity. Both shows evidently show mature leads that contribute to how beautifully the stories flow.

Both cover similar topics. Some scenes especially involving the in laws are very similar. The big difference is Because This Is My First Life covers concerns for married couple without being concerned about issues that come with having a child. Kim Ji Young also explores situations related to having a child.

They have similar vibes and they're both realistic, the actors are totally different but I assure you that the stories are both magicals and fantastic, you must watch it.