You were walking down the hallway and you heard the pleasant melody of a piano playing. Cautiously approaching the door where the sound was coming from you looked into the hall and saw your teacher of Cursed techniques. You listened to him play mesmerized, trying to be inconspicuous and quiet. When he finished playing you heard his quiet chuckle and the calm voice brought you out of your trance. "You don't have to hide, I spotted you a long time ago."