A diary filled with secrets that no one knows. At first, there was only one writer but now, there are two of them and they start to exchange secrets.

Hwang-Geum Jangmi Academy is a prestigious school where a lot of rich kids attend to. Actors, Models, Singers and etc. also attend this school. It is headed by the school chairman, Im Sang Ki. Im Hyunjae, the chairman’s daughter, is well known in the campus as a role model to everyone. She has the image of a strong princess and she is good in almost anything but what they don’t know is that she is actually a big scaredy-cat. She’s the complete opposite of a tough girl but she has to keep that kind of image to not ruin the chairman’s image. To make it comfortable for her, she writes in her secret diary about all her fears and worries and her feelings but here comes Hwang Minhyun who was able to read the diary and is now aware of Hyunjae’s secret side. He uses Hyunjae’s secret to make her become his slave. He also decides to help Hyunjae into becoming a strong person and later on, he also writes in the diary and starts opening up to her. What will happen to these two after being able to know more about each other and each other’s secrets?

Characters:

Hwang Minhyun

                -He belongs to a group called NU’EST and is attending Hwang-Geum Jangmi Academy with fellow member, Ren (Choi Minki). A lot of fans adore him for being charismatic on stage but when he is off stage, he is actually a guy who doesn’t care about a lot of things. Whenever a girl confesses to him, he immediately rejects her. He has a face that says ‘I don’t care’ but in the end he is still adored by many girls. He likes to make fun of Hyunjae but he also wants to protect her and he also helps her in becoming a tough girl for real. He starts writing in Hyunjae’s diary after he read the contents of it. He is determined to help her becuase he was touched by Hyunjae's real feelings that she wrote in her diary. He also opens up to her and later on starts to like her. He soon confesses to her through writing in the diary.

Im Hyunjae[You]

                -She shows the image of a strong princess who is capable of doing things perfectly and who is a straight forward person but she is actually the complete opposite. She isn’t a big fan of violence and she hates it whenever she has to yell at someone. She keeps up this kind of image because as the chairman’s daughter, she is expected to be a role model to the other students. Only a few people know about her weak side. She has this secret diary in which she writes all of her feelings. That diary is where her true self is really shown. That diary is the last thing that she wants Minhyun to read but unfortunately, while she was writing, she wasn’t aware that Minhyun was behind her and he read mostly everything. She starts to get close with him and every time Minhyun would attempt to reveal her secret, she would punch him. She has an older brother named Im Siwan who is the school’s counselor and comes to him whenever she feels down. She also has a crush on her senior, Jung Daehyun.

Jung Daehyun

                -He is the student council president of the Academy. He is also popular among the girls but the truth he is, he is a very dense person and is really mysterious. He finds no interest in love at all but he has someone that he thinks is very special to him and that is Hyunjae. He is a responsible young man and is later announced to be Hyunjae’s fiancé. He wasn’t aware of Hyunjae’s weak side but he knew that she was hiding something and he helps her in continuing to hide her weak side. Later on he realizes his feelings for her and does whatever it takes to win her over Minhyun.

Choi Minki/Ren

                -Also known as Ren. He is seen together with Minhyun all the time. He is often mistaken as a girl because of his shoulder-length blonde hair and he shows his feminine side more than his manly side. He is very popular among girls. He hates it whenever someone tries to challenge him. He is despised by Hyunjae’s friend Park Eunmi because the two of them are the complete opposite and Ren sees Eunmi not as a woman but as a guy. Just like Minhyun and Hyunjae, these two also have a love-hate relationship.

Park Eunmi

                -Hyunjae’s best friend who is very good in karate. Unlike Hyunjae, Eunmi is really brave and isn’t afraid of anything. She is also a straight-forward person. She shows more of a boyish side but still, she is adored by many because of her looks and this is what irritates Ren the most because she’s a girl yet she acts like a guy. She despises Ren because of his feminine side but Ren sees this a being jealous because he is more feminine than she is. As a counter attack, Eunmi tells Ren that he envies her because she shows the guy side more than him. She is aware of Hyunjae's weak side and she is always there to back her up.

Im Siwan

                -The school’s counselor and Hyunjae’s older brother. He loves his dear sister so much and he always advices her to show her real self but Hyunjae wouldn’t listen to him. He is soon to become the next chairman of the academy after Hyunjae will graduate.