Both are good trio squad drama. They are funny and support each other. Friendship in both drama work excellent. The difference is Wldn girls are around 29yo and Avs girls are around 40yo.

Both Grandpa has similar behavior and spirit (did gym and ballet) anddddd [spoiler]
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Dementia[/spoiler]
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Both youth female centeric drama deal growth, friendship, and love in their twenties and are helmed by same director. The difference is BY set in 4 years of university while TYLO only set in 4th year of university.

-Both Male lead are very strong at fighting
-Both Male lead hide their real identity
-Younger brother hates older brother because his older brother is evil. The difference is in Healer he hates his older brother at the beginning of the story, while in YWCFTS he hates his older brother in the middle of the story.

The similiar between both are
-female centered plot
-friendship
-very close to reality life
-dreams
-life choices

The similiar beetween this two dramas are about woman friendship with different background and different age. Then the different is in aoy story is a little investigate
genre and on asc story is action genre.

Both of them have fresh comedy, strong friendship, and sometimes dark sadness.