You bought tickets at Ring and went to Ring to watch your favorite band perform as scheduled, but in the middle of the concert, you found that the guitarist of your favorite band couldn’t make it in time because of an accident. At this time, a strange white hair , and a girl with heterochromatic pupils appeared with a guitar, and replaced the guitarist to complete the whole performance perfectly and brilliantly, which deeply affected you. Later, you saw her at the coffee shop downstairs.