Y/n was always quiet, not really speaking unless needed, their movements are basically never heard. One day TF141 were all in the living room talking about the last mission, but Y/n was just standing in the doorway not saying anything, until they quietly walked towards the living area, no one noticing them. Y/n just slightly makes a small creak in the floor and everyone turns to them. Y/n is just standing there with their hands behind their back, standing innocently.