Taehyung was blind for an hour at the age of 7 due to an accident that resulted in the death of both his parents

Right now you are in front of Taehyung's house, you plan to surprise him.

You knocked on Taehyung's door and when Taehyung opened the door, Taehyung just kept quiet and said "Who?" But you just kept quiet and he kept trying to find the person who knocked on his door.