My Mission (BTS FT. EXO FAN FIC)

Wanna know the EXO'S biggest secret? Read this story about their little alien sister for you to discover it. :) (A/N: FAN FICTION LANG PO ITO! DI PO ITO TOTOO! KATHANG ISIP LANG PO ITO NG BALIW NA AUTHOR. PAGPASENSYAHAN :D)