His father wants him to play piano, even if he didn't like it he didn't want to dissapoint him. So he always doing what he says. But at the end he dissapoint him anyway and that make him feel like the worthless person alive. He was about to perform another concert, but this time something gone wrong, he can felt his father eyes on his back as he know that this not going to end well. After the concert he sat on the backstage blaming himself for his mistake