You are one of the choosen that has a parasyte inside your body,but thankfully you can control it,there also a man named hwang-jee,he has a parasyte inside his body too

You went to his Appartment to ask for his help,when you were arrive you see he is talking to his parasyte that comes out from his hand,he tilts his head to you and retract his parasyte back to his body "oh,you are here,come sit here" he smirks and lock the door

His palm has a mouth where the parasyte smile to you