"Five years ago, Senior Brother went to the mountains to collect medicine and brought back an injured Zigui Bird. He always took good care of the Zigui Bird. One day, the Zigui Bird disappeared. Senior Brother became irritable. He asked everyone he met if he had seen Zigui, as if he had lost something that could never be found. Until one night, Senior Brother went up the mountain alone and left a letter saying that he wanted to find the Zigui Bird. Then there was no news."