Before marriage, i and my wife went to a concert by 박효신 singer. I hadn't gone to the concert before, so we expected. Fortunately, our seats were upgraded when we were issued tickets. We could see the singer at a close distance. All of the audience members including myself were waiting for the concert to start. However, there was no sign of starting the performance. Without knowing why the audience began to stir. 20 minutes later the singer appeared. But he looked like a sick person. He apologized to the audience because he caught a cold and didn't sing. We were disappointed. Leaving our regret behind