This oneshot collection will focus on the Mystic Messenger characters and K-pop together. A few examples of such oneshots would be a K-pop AU with MM members as K-pop stars or a K-pop song that relates to their story etc. So any ideas relating to both Mystic Messenger and K-pop can be suggested in the comments. I will be sure to mention you if I'm interested on writing a story on it.  

Kang Hana had been childhood friends with Han Jumin dan Kim Jihyun since they were five years old. Happy days growing up together were taken for granted until one day Hana had to move abroad with her family, leaving her dearest friends in South Korea. Ten years later Hana unexpectedly met one of her childhood friends, only to find out that she had been replaced all along.