Both are from the same writer and share the same type of humour and witty dialogue

Both of them are about contagious virus.

Both are about airports the only difference is in Attention Please the main character is training to be a fight attendant.

Both are a young high school teacher and a female student who spent a night together.

Both feature Song Hye Kyo with her great realism acting, an immersive story, great actors and great production. Bae Jong Ok & Seo Hyo Rim also feature in both dramas. If you liked the love story in one you'll probably like the other as well.

Both are about dudes who toy with womens hearts and end up falling in love themselves. They are both expertly executed productions as well so if you liked one you'd like the other

I feel that the two dramas are quite similar, mainly because of the main character's friends. They all talk about gossip ec... The main character in Last cinderella is looking for love before the age of 40, and the main character of I need romance is looking for a stable relationship before becoming too old...

they reminded me of each other, the teamwork and trust brotherhood that develops along the story line although the four goes more in depth with each character than the vigilantes but both are great to watch.

The comedy style is similar on the two dramas. Lots of workplace humour and similar themes.