In the kingdom of Fairydom located at the Seoul forest. Fairydom was at peace and all fairies are all in their normal lives but one day. A young man tries to tries to ruin the forest for his business.

"Are you sure sir? You will break down everything in this forest for your business?" asked by the Engineer.

"Why are suddenly asking me this kind of question? I'm not paying to meddle in my plans. If I were you, I'll just shut my mouth and do what my boss wants me to do!" 

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"Fairydom is now facing a problem, its up to you Sulyeon to stop those humans from destructing our home." the queen fairy said, "But remember once I transform you into a human, you must never ever break this rule. Never fall in love with a human, if you failed then there would be a punishment. I hope you can save our kingdom. I trust you Sulyeon!" 

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"It's up to me, to save the kingdom but how can I? If right now I'm already breaking the rule." - Sulyeon.

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How will Sulyeon save the kingdom from the human whom she fell in love? Will she fight for right or for love?