National Destiny? Not Even a Dog Would Go! But My Teammate Is Emperor Zheng? Count Me In

[No romance + national destiny + dungeons + favoritism toward Qin Shi Huang + TV characters + team-ups + history + out of character] The myriad worlds have always supported one another, while the Space-Time Administration maintains a delicate peace among them. But for some unknown reason, travelers and bootleg Systems suddenly began running rampant through the minor worlds. To protect the life of Heaven's favorite, the world wills signed a contract with the Administration. As participants and guardians, they accompany the challengers as they tackle dungeons. Zhang Chulan: “What? National destiny? Dungeons? And no rewards? Not even a dog would go!” Wu Xie: “This dungeon looks awfully familiar, but sorry, I still have to find Xiaoge. Ask someone else.” Li Xiangyi: “What happens to other people is none of my concern.” ...Nezha: “Huh?? A dungeon?? Sounds fun, sounds fun! Another world?? Sounds fun, sounds super fun!” Looking at the stream of rejection messages, 9528 felt a headache coming on. At least Nezha was willing to step in. The wheel spun, and the first challenger appeared: the emperor of the ages, the Ancestral Dragon, Qin Shi Huang, Ying Zheng. One by one, the people who had been refusing now scrambled to accept. Zhang Chulan: “Holy crap!! Ancestral Dragon Dad! I'm in!!” Wu Xie: “Qin Shi Huang??!! Me! I'm taking Xiaoge with me!! Buy one, get one free!” Li Xiangyi silently packed his bags and got ready to leave! Nezha: “Huh?? Who are they? Didn't they say they weren't going? Why are they going now??!! No stealing! He's mine!!!” (I think Qin Shi Huang and Nezha are going to have a very different kind of story.)