Kim Sung Min (You) lived in a beautiful house together with your family, your older brother and sister, and two younger sisters. You were happy and always have a smile on your face. Your family was extremely rich and you got to study in School of Performing Arts Seoul together with Boyfriend. Together, you discover new friends, obstacles, and new enemies as your friendship tests all of you. Join Sung Min and Boyfriend as they go on searching for the meaning of Best Friends Are Forever.

Characters

Kim Sung Min (You)

The cute 14-year-old girl who studies with Boyfriend at School of Performing Arts Seoul. You knew each other since childhood and were very close friends since then. You have feelings for Kwangmin but have not told him about it yet. 

Kim Sung Mi

Your 18-year-old sister who really cares a lot for you. She is very cute and knows about your feelings for Kwangmin. She has a boyfriend named Jang Woo Young, Sung Ji's best friend.

Kim Sung Ji

Your 18-year-old brother and protector. He knows that you like Kwangmin and gives you information on him. He loves you so much and never wants you to be in danger. His best friend, Woo Young, is Sung Mi's boyfriend. He is sometimes annoying but deep inside, he is a kind and loving brother and boyfriend to his girlfriend, Song Hana.

No Min Woo

Your best friend who would always make you smile. He is kind, caring and protective just like Sung Ji. He was the one who told you that Kwangmin likes you. 

Jo Young Min

The ageyo prince of Boyfriend and Kwangmin's older brother. He makes you happy by doing aegyos and makes everyday a special day for you. He helps Kwangmin express his feelings for you by giving you Kwangmin's birthday gift which was a star necklace. 

Kim Dong Hyun

 

Boyfriend's leader and hyung. He is caring to all of s, especially when you came. He helps Minwoo confess to you about what he feels. He was the one who sent you two to Jeju for a date. He wants everyone around him to be happy and have a positive attitude towards life.

Lee Jeong Min

The one who makes all of you laugh is him, Jeongmin. He makes the atmosphere around you bright with laughter and happiness. He could brighten up your day with just one smile. A day never passed by without Jeongmin smiling. Whenever you are sad, he makes you smile by telling you jokes that will laugh you heart out.

Shim Hyun Seong

The group's second hyung. He is a loving person is also a bookworm. He is mostly seen in the library with you and is also called as "Boyfriend's tutor". He has a younger sister named Young Hyun, who is your best friend.

Jo Kwang Min

Youngmin's twin brother and your crush. He is a moody person but is actually an outgoing guy just like you. He spends his time hanging out with you and gives you surprises. It also turns out that he also likes you in return. He turns out to be your first kiss and your first love.

Kim Sung Hyeon

Your 7-year-old sister whom Kwangmin adores a lot. She is bubbly, cute and very smart just like Sung Ji. She is very close to your other sister, Sung Geun.

Kim Sung Geun

Your 11-year-old sister who has a taste for anime. She is a very good artist and is admired by Shin Ji Hoo, Ji Hwa's younger brother who has a crush on her.

Song Hana

Sung Ji's best friend who thinks he is very naive but later falls in love with him. She is as rich as you are and she likes you because she saw how much you loved Sung Ji, and wanted her to let her know that Sung Ji loves you back because you're siblings.

More characters might appear later on!!! So list them down!!!!