Who is Mr. Wu, the teacher of the Northern School who took notes on grave robbery?

Who is Mr. Wu, the teacher of the Northern School who took notes on grave robbery?

The fifth owner of Tomb Notes is Wu Xie's grandfather Wu Laogou. Wu Xie, the hero's grandfather, is one of the old nine tomb raiders in Changsha and the head of the Wu family. When he was a teenager, he once participated in the excavation of the blood tomb. Since then, his nose has failed. He trained a Tibetan mastiff named "Sancunding" to hide in his sleeve, so he got the nickname "Dog Fifth Master" and was a promising young man in Laojiu. 1950 or so, the famous silk case of the Warring States period was discovered. Wu Laogou was puzzled by Qiu Dekao, an American, and the stolen silk book was cheated away by Qiu Dekao. Changsha Tufuzi shuffled all the cards. Wu Laogou gave up all his money, came to Hangzhou, married his eldest daughter who was a consort, and gave birth to three sons, Wu Yiqiong (Wu Xie's father), Wu Erbai and Wu Sansheng.