Look in center of the crowd, you'll see Kim Soo Ah shining brighting. She's beautiful, she really is. Everything about her is pure perfection. A head of natural brown hair, pale skin, and an overall serene look, every guy falls for her easily. All the attention goes to her. With a smile forever plastered on her pretty face, she walks around with her head held high. No- that is her best friend, Jo Hyunjoo. Soo Ah is the side character of Hyunjoo's story.

Everything until Oh Sehun showed up in her life. A man with a dark secret, one from another planet, has accidently planted himself in her life. Now she's the main character of her own life.