I'm in Douluo Dalu, but the System Is in Battle Through the Heavens

Xiao Yun transmigrates to Douluo Dalu and successfully binds himself to a Spoils System. The only problem is that the System isn't in Douluo Dalu, but in the Battle Through the Heavens World. Xiao Yun: “System, are you kidding me? I'm in Douluo Dalu, not the Battle Through the Heavens World. Where am I supposed to find Xiao Yan?” [Ding! Congratulations, Host. You have obtained the Xuan Heavy Ruler. For your first successful interception, the reward has been upgraded from Huang rank to Xuan rank.] Xiao Yun glances at the Martial Soul in his right hand, which looks rather like the Xuan Heavy Ruler, and falls silent. [Ding! A destined female supporting character, Yun Yun, has been detected. Successfully intercepting her will earn a Di-rank reward.] Tang San: “Damn it! How can he be so strong? And he has so many Self-Created Soul Skills. Could he also be from another world?” Tang Hao: “How is that possible? You're only a puny Soul Sage, while I'm a Titled Douluo!” Yu Xiaogang: “Impossible. Absolutely impossible. My theories can't be wrong. This must be an illusion.” Xiao Yun: “A God King? Hah, stay away from me. Don't make me come over there and smack you.”