2015 was filled with so many good dramas! CJ E&M and Nielsen Korea gathered Contents Power Index (CPI) data on what have been the hottest dramas based on online buzz. What the survey termed as online buzz included keywords on search engines and mentions on social media and blog posts about the dramas. Here are the 10 most popular K-dramas of 2015 based on social media buzz. Scroll down to reveal!

10. Six Flying Dragons

Yoo Ah In and Shin Se Kyung's historical fantasy Six Flying Dragons ranked tenth with 71,557 counts of social media buzz.

9. Kill Me Heal Me

Ji Sung and Hwang Jung Eum's Kill Me, Heal Me ranked ninth with 84,470 counts of social media buzz. The love story of a conglomerate man with dissociative identity disorder and his secret doctor was a big hit, thanks in big part to Ji Sung's portrayal of seven different personalities. 

8. Producer

Producer was a highly anticipated drama even before it premiered for many reasons. First of all, it was the second collaboration of the My Love from Another Star actor Kim Soo Hyun and writer Park Ji Eun. Secondly, many top stars played a role, such as Gong Hyo Jin, IUCha Tae Hyun and Kim Jong Kook

Producer was the eighth most popular K-drama of 2015 with 81,559 counts of online buzz. Last week, Kim Soo Hyun received a Korea's national brand award for starring on Producer.

7. Yong Pal

Joo Won and Kim Tae Hee's Yong Pal is the 7th most popular K-drama of 2015 with 84,384 counts of online buzz. Although Joo Won and Kim Tae Hee had a seven-year age gap, their chemistry was awesome; Joo Won shared he had wanted to film with Kim Tae Hee. By the end of the show, the melodrama of a talented surgeon and a conglomerate family's heiress touched many of our hearts.

6. Cheer Up!

Apink Eunji's school series Cheer Up ranked sixth with 91,603 counts of online buzz. 

5. Answer Me 1988

Answer Me 1988, starring Girls' Day's Hyeri, ranked fourth with 91,603 counts of online buzz. 

The Answer Me series have been popular since the first of the series, Answer Me 1997, in 2012. The Answer Me series (1997, 1994 and now 1988) have uncovered many new actors who were originally K-pop idols. Infinite's Hoya, Apink's Eunji and BTOB's Sungjae are some of the other K-pop stars who've starred on the Answer Me series. See the full list of K-pop idols who have proven themselves as talented actors.

4. Scholar Who Walks The Night

Lee Joon Ki's Joseon vampire drama Scholar Who Walks the Night is the second historical drama that made it to the list with 91,603 counts of social media buzz. Lee Joon Ki and Lee Yoo Bi's captivating romance made our hearts flutter. Come back with another drama soon, oppa!

3. I Remember You

Seo In Guk and Jang Na Ra's detective series I Remember You ranked third with 198,794 counts of online buzz!

2. She Was Pretty

Of course, She Was Pretty ranked as the second best K-drama of 2015 with 217,574 counts of online buzz. Fans will remember Hwang Jung Eum's Ugly Betty style curly hair and Choi Si Won's expressive faces. By the way, did you know that Choi Si Won is most vulnerable to women's tears?

1. Sensory Couple

Finally! The fantasy romantic comedy Sensory Couple placed the first with 226,602 counts of online buzz. Sensory Couple wooed our hearts with many cute scenes, like Park Yoo Chun and Shin Se Kyung's ddukbokki kiss and Shin Se Kyung spraying her gorgeous flower petal perfume.

Did you enjoy this list? Also check out these 10 dramas of 2015 that earned the highest viewer ratings in Korea!

How many on the list have you watched? Share your favorites with us in the comments below!

Watch Sensory Couple, the drama with the most online buzz, below!