"Guys are not to be trusted. But maybe not every guy is bad?"

Park Yoojin has learnt from her past that guys are not be trusted. She had watched enough people suffer after falling in love with a man who betrayed them; her mother, her best friend Soori, and even herself. However, this depiction of men starts to fade as new people come into her life. Maybe not every guy in this world is bad?

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"Girls are all the same. But why is that one so different?"

Key comes from a richer-than-average family and had always been blessed with good looks. He hasn't had any interest in a girl yet though. Whats the point? They're all the same, it's only the looks that they care about. But when he first laid eyes on the girl sitting in the far corner of the classroom, he felt his world start to change...

Will things work out for them?