Park Jiyeon has been jealous to Eunjung’s best friend that she never got a chance to see yet. To the extent where she promised herself that once she meet her, she will show that girl how sweet she is to her Eunjung unnie.

Jiyeon is having a bad feeling that one of them has a secret feeling for another or worst, both of them have. You can't blame her for being paranoid though. Even other people can notice how close these two for just being labeled as “bestfriends”.

But...

Unexpectedly, when Jiyeon finally met her. Her Girlfriend's bestfriend, she felt something...

Something different.

Will she choose to follow the plan of getting rid of her Girlfriend’s best friend? Or follow what she really feels?