A story begins in a school, so cliché. But that night, an invisible yet intense battle of a best friend and a childhood friend has begun. The prize? We dont know yet.  ForewordSo, a MoonSun and MoonStal fanfic. For the first time to these couples.Its been a while since I wrote a story. Im sorry to those who waited for to update my story, if any. HIHHIHI. Its just MAMAMOO caught my attention and I lost my track in the story. So, Im sorry again.On the other hand, since I really love MAMAMOO I decided to post this stoy. Im so confuse if I should post it or not. So, in the end here I am, writing a story for all of you.Please support this story until the end. I will do my best. Hope you like my story. Advance story for my wrong grammar and spelling. English is not my first language. KAMYEONG. BBYONG!