WHO AM I?

As hongjoong could see the man with a butterfly mask smirking
"only one member I can only let go one of your spies
just one" said seonghwa
and hoongjoong could only think of one person
"let the shadow go"
he said his voice stopping right at his throat as he remembered his hyung atleast his hyung should know that he is alive
he said looking up
"let the shadow go"
he said now firmly