Siheyuan: the Courtyard Is Full of Time-Travelers

My name is Zhang Weidong and I come from the 21st century. Good news, I have traveled through time. Bad news: I traveled to a courtyard full of animals At this time, the system gave me the ultimate task 1 Let Jia Zhang become a moral model 2 Let Qin Huairu become a good wife and mother 3 Let Yi Zhonghai become a true moral god 4. Let Liu Haizhong's family be kind and filial. 5 Let Yan Bugui become a selfless and generous person 6 Let Bangge become a young man with good character 7 Let Xu Damao become a gentleman who is willing to help others 8 Let He Yuzhu start a family and start a business, and no longer like widows 9 Let the deaf old lady become a truly upright person with hearing and vision Looking at the task given to me by the system, my eyes darkened. I had no choice but to bite the bullet and finish it, but gradually I felt that something was wrong. A big brother suddenly appeared from nowhere. Isn't Jia Dongxu an only son? How could he have a younger brother? If it wasn't for Yi Zhonghai's nephew, why would he still need to find someone to take care of him? Why did Liu Guangtian hit Liu Guangfu again? Looking at the chaotic courtyard, it seems that the task is not impossible.