Who is grandpa who wants the intimate contact of antique mahjong?

In the novel "The Ancient Adventures of Mahjong", the grandfather who made a wish is Xu Yicheng, the former head of Wumai.

There are three lines in the story of the series of novels "Close Contact with Ancient Style of Mahjong": one is bright and the other is dark. Ming Xian is a book with the theme of an antique, which tells how to find and protect a national treasure by making a wish. There are two hidden lines: one is the identity of Lao Chaofeng, and the other is whether Grandpa wished to be a traitor and how many secrets he had in those days.

In the first novel "Close Contact with the Ancient Style of Mahjong", many doyen of "Five Veins" said that Xu Yicheng was a traitor and a shame of "Five Veins". But he didn't believe it when he made a wish. He feels that this matter is full of doubts, and there must be something else hidden in the truth.

In the process of treasure hunting, wishing gradually learned the truth of that year, and became closer to the real body of Lao Chaofeng. It turns out that Xu Yicheng is not a traitor, he is just protecting the national treasure in his own way.

Although after what happened that year, many people in Five Veins did not believe that Xu Yicheng was a traitor, and even everyone was thinking about how to rescue him. However, because of the need to protect medical safety and the national treasure "firewood porcelain", Xu Yicheng finally had to bear the charge of "traitor" and die generously with love for the country and the world. However, the prudent way of practicing medicine did not live up to Xu Yicheng's great trust. Finally, he died with Hotan, and sank the Fugong with his own strength, leaving the precious "firewood porcelain" at the bottom of the sea.