Erzhu lived his whole life, leaving Sanwazi as a single seedling. When he couldn't survive, he felt sorry for Sanwazi to live alone, and told Sanwazi to come down and leave together after he had cleaned up. Sanwazi is a good boy. When he was about to follow him, a dog stopped him...
Sanwazi failed to leave, and Sigoudanzi was left with a single seedling, so a new period of survival began around Sigoudanzi...
Easy (really)
Xiaoqiang was attacked by a bully (really)