A girl named Im Yoona was climbing a tree that was in her backyard, one day, when she discovered a person's body. She tried telling the person to come down, but the person wouldn't reply back. Alarmed, she ran back into her house to get her phone, then immediately called '911'.

Soon, the firefighters, police, detectives, and paramedics come to her house to see the person. The firefighters pulled the person down from the tree, to discover that it was a dead body of a young girl, whose features had once been beautiful.

The detectives find out that the girl is Krystal Jung, who was a rising star in Korea. Yoona and Choi Minho, the detective assigned to this case, team up to find out who the murderer is. But what'll happen when love finds its way to them? Will they be able to solve the mystery of love and murder all at the same time? Or will they fall apart?

Im Yoona

A 19 year old girl who finds a dead body in one of the trees in herbackyard. Yoona is a very lively and energetic girl. She loves to dance and read. Yoona is just an ordinary girl, until she gets pulled into this murder mystery. Will she be able to solve it?

Choi Minho

A 20 year old young man who is a great detective, and has solved cases all over the world. When no one was able to solve a mystery, he was the one who could solve it in a split second, but will he be able to solve the mystery of love?

Jessica Jung

A 19 year old very famous K-Pop star, who is known all over the world. She is one of the main suspects for this mystery, being the victim, Krystal Jung's, sister. She is also known as the 'Ice Princess' because she can be very blunt and straightforward, and some people don't like that. Jessica has an amazing voice, but will that get her out of this mess?

Lee Jinki (Onew)

A 20 year old K-Pop star, who is very close to Jessica. He was very close to Krystal and treated her as his own sister, and was devastated when he found out that she had died. Onew is Jessica's pillar that helps her stand and stay strong in times when she feels like she wants to die, but when Onew becomes a suspect for this crime, will he be able to stay strong?

Krystal Jung

The victim of the murder. Krystal was 16 when she died. She was a rising star because of her and her groupmates' awesome debut stage, but why and who murdered her? Krystal was Jessica's beautiful younger sister, who loved life. Will Krystal be able to avenge her murder through Yoona and Minho?

F(x)

The group that Krystal was in. They were loved in Korea,because of their personality, style, and their music. They are one of the most likely to have killed Krystal Jung. The group's members are: Victoria (Leader), Luna (Main Singer), Amber (The Rapper), and Sulli (The Face).