Wanjie Recycling, Am I Not the Protagonist?

Yang An traveled to a fantasy world and thought he could show off his skills and create his own myth of a time traveler, but reality seems a little different from imagination? "Brother, what do you call Thirty Years of Hedong, Thirty Years of Hexi?!" "And Senior Brother, what do you mean you are going to return after three years?!" As a supporting character, I naturally have to have the awareness of a supporting character. It's okay if I hug the protagonist's thigh.