1. The Time We Were Not in Love

(Hangul: 너를 사랑한 시간; RR: Neoreul Saranghan Sigan; lit. The Time I've Loved You) is a 2015 South Korean television series starring Ha Ji-won and Lee Jin-wook, adapted from the 2011 Taiwanese drama In Time with You.
PLOT: Oh Ha-na and Choi Won are both 34 years old and have been best friends since high school. For the past seventeen years they have been present for every milestone in each other's lives; but, through missed timing, a romance has never developed between them.

2. Who Are You: School 2015

(Korean: 후아유: 학교 2015 Revised: Huayu: Hakgyo 2015^?) is a 2015 South Korean television series, starring Kim So-hyun, Yook Sung-jae and Nam Joo-hyuk.

PLOT:

Go Eun-byul ( Kim So Hyun )and Lee Eun-bi (이은비, Kim So Hyung) are identical twins, separated after one is adopted at the age of 3. Eun-bi lives at the Love House, an orphanage in Tongyeong, South Gyeongsang Province, where the younger residents look up to her as a mother figure. However, she hides the fact that she is bullied at school by a gang of mean girls led by Kang So-young (강소영) , while teachers turn a blind eye.

On the other hand, Go Eun-byul is studying at Sekang High School, the most prestigious private high school in Seoul'sGangnam District. Eun-byul's best friends are Cha Song-joo (차송주) and Lee Shi-jin (이시진) , and she shares a mutual attraction with Han Yi-an ( Nam Joo-hyuk ) , the school's star swimmer. They have been friends since they were 8.

Eun-bi and Eun-byul look exactly alike, but only Eun-byul is aware of the other's existence. Unlike the cheerful Eun-bi, Eun-byul is prickly and secretive.

One day, on a school field trip to Tongyeong, Eun-byul mysteriously disappears. At the same time, Eun-bi is unjustly expelled from her school and jumps off a bridge in a suicide attempt. Ten days later, the injured and amnesiac Eun-bi is mistaken for her twin Eun-byul, and her adoptive mother takes her home to Seoul, where she starts living as Eun-byul. But soon her memory returns. Eun-bi faces many challenges as Kang So Young transfers to Sekang High School and tries to reveal her real identity, as well as use her dad's help to make Eun-bi transfer. Luckily, Gong Tae Kwang (Yook Sung-jae ) , Eun-bi's classmate and the school troublemaker, protects her whenever So Young tries to bully her. Soon, Eun-bi tells Tae Kwang her real identity, and Tae Kwang becomes the only person Eun-bi can trust. He even begins to develop feelings for her.

3. Hi! School – Love On

(Korean: 하이스쿨: 러브온) is a 2014 South Korean television series starring Kim Sae-ron, Nam Woo-hyun and Lee Sung-yeol of the band Infinite

Hi! School – Love On is a teen fantasy romance series about an angel who has no choice but to become a human after unintentionally saving a male student in danger. The now-mortal angel then interacts with teenage high school students and learns about love, friendship, and what it means to be human.

4. My Love from the Star

(Hangul: 별에서 온 그대; RR: Byeoreseo on geudae; literally You Who Came from the Stars; Chinese:来自星星的你 ; Khmer:សង្សារខ្ញុំជាមនុស្សភពផ្កាយ; Bengali: তারা থেকে এলে তুমি ) is a South Korean television series about an alien who landed on Earth in the Joseon Dynasty and, 400 years later, falls in love with a top actress in the modern era.

5. Full House

(Hangul: 풀하우스; RR: Pul-hauseu) is a 2004 South Korean television series starring Song Hye-kyo, Rain,Han Eun-jung and Kim Sung-soo.

Ji-Eun, an aspiring scriptwriter, lives in a house called "Full House" built by her late father. One day, her two best friends trick her into believing she has won a free vacation. While she is away, they sell her house. On the plane, she meets a famous actor named Young Jae. Through comedic events, they get acquainted during her vacation and when she returns, she discovers her house has been sold to him.

Though they don't get along with each other, as she is messy and he has a bad temper and likes cleanliness, they agreed to live with each other. At first, Ji-eun works as his maid in order to buy her house back, but because of Young-jae's wish to make the love of his life, Kang Hye-won, jealous they get married. They set up a contract for the marriage to last six months. During that time, complications arise and Ji-eun and Young-jae become attracted to each other.