The protagonist has a chat group and can become a knight of the dark emperor. Which novel has Gagula?

The novel "Xiuzhen Chat Group" and the protagonist of the chat group: Legend of the Sword and the Chivalrous Man.

One day, Shuhang Song unexpectedly joined an exchange group for elderly patients with the second disease in Xian Xia. The friends in the group are all called "Taoist friends", and the business cards in the group are all kinds of homeowners, cave owners, real people and Tianshi. Even the lost pet dog of the group owner is called the big demon dog who ran away from home. Talking about alchemy all day, entering the secret realm and exercising experience. Suddenly one day, after diving for a long time, he suddenly found that every member of the group is actually a yogi who can move mountains and rivers and live for thousands of years.