Profile's and Facts about the Characters!!

Plot:
Kim Hwajae. A normal school girl with her (Ab)Normal friends. But what if some abnormal boys enter her life? Will she stay normal? or Will she go with the flow of her story?

Cha Eun Woo, or let's say Lee Dongmin, a member of AsTrO and their visual. A shining star meeting a normal girl, how will they behave? Will it go normal? But the main question is, "Who & what the hell is AsTrO?"