While the player is in Battle Through the Heavens, the system is in The Great Ruler

In a stunning turn of events, Lu Yu finds himself reincarnated in the esteemed Dou Qi Continent, where he is greeted with a shocking revelation: the simulation system has malfunctioned, transporting him to the Great Thousand World instead of the expected realm. As he navigates this uncanny twist, Lu Yu's eyes widen in awe at the unprecedented opportunities presented by the bug-ridden emulator. With an arsenal of cutting-edge techniques at his disposal, he embarks on an extraordinary path of cultivation, one that sets him apart from his peers. The reputation of the Spirit Array Master, Dragon-Phoenix Divine Fruit, and Great Floating Pagoda Technique spread like wildfire, sparking curiosity and intrigue among the continent's elite. Zi Yan, the Little Fairy Doctor, and Gu Xun'er are among the many who are left bewildered by Lu Yu's seemingly overnight mastery. When confronted with his accomplishments, Lu Yu proudly declares, "Every achievement I've made is the direct result of my own tireless efforts."