Luna is a girl who is in High School. She always pays attention to her studies and her friends. She never loved anyone after her first love, Hyungsik. They soon broke up after he moved to Europe even though they both had feelings for one another. She starts dating a boy named Baekhyun, who reminds her of Hyungsik. She falls in love with him. She later finds out that he dated her only to date her best friend, Jooyeon.

Luna f(x))

 Baekhyun is a high school student who never cared about school. He always tries to look for his soulmate. He soon finds her, thinking it's a girl named Jooyeon. In order to get closer to her, he dates Luna, after he realized that Jooyeon was in love with someone else, he breaks up with Luna. That was when he only realized his real soulmate was her the whole time.

Baekhyun (Exo)

Jooyeon is Luna's best friend who was always a bright cheerful person. She fell in love with Baekhyun but she fell in love with someone else and forgot about Baekhyun. She fell in love with Hyungsik, Luna's first love. Jooyeon didn't know that that was Luna's first love. She met Hyungsik when she went aboard for a month in Europe. She confessed his feelings towards him, but he says he loves someone else. Jooyeon is devastated. She returns to Korea. After Hyungsik returns to Korea, she finds out that he is in love with Luna. That's when she starts becoming greedy for love.

Jooyeon (After school)

Hyungsik is Luna's first love. He was perfect to Luna. Until he moved to Europe. On his way there, he realized there was still something left in his relationship with Luna. He never stopped loving her. He felt as if he needed to come back to Korea as soon as possible. While he was there, he met a woman name Jooyeon. He soon finds out that she loves him. He doesn't have any feelings towards her because he still loves Luna. He later returns to Korea, trying to find Luna.

Park Hyung Sik (ZE:A)

Writer's note:

I haven't written the full story yet. I am still debating if I should continue on or not.